Personal life[ edit ] Family and training[ edit ] Karl Popper was born in Vienna then in Austria-Hungary in to upper-middle-class parents. All of Popper's grandparents were Jewishbut they were not devout and as part of the cultural assimilation process the Popper family converted to Lutheranism before he was born   and so he received a Lutheran baptism. Popper's uncle was the Austrian philosopher Josef Popper-Lynkeus.
Indeed, these differences can be conceived in more abstract terms as the contrast between empiricism and rationalism. This theme dominated the philosophical controversies of the 17th and 18th centuries and was hardly resolved before the advent of Immanuel Kant.
Less an original metaphysician or cosmologist than the advocate of a vast new program for the advancement of learning and the reformation of scientific method, Bacon conceived of philosophy as a new technique of reasoning that would reestablish natural science on a firm foundation.
In the Advancement of Learninghe charted the map of knowledge: To reason, however, Bacon assigned a completely experiential function. Fifteen years later, in his Novum Organumhe made this clear: His concept of fact and his belief in the primacy of observation led him to formulate laws and generalizations.
Also, his conception of forms was quite un-Platonic: His enduring place in the history of philosophy lies, however, in his single-minded advocacy of experience as the only source of valid knowledge and in his profound enthusiasm for the perfection of natural science.
With the first he shared a strong concern for philosophical method, with the second an overwhelming interest in matter in motion. His philosophical efforts, however, were more inclusive and more complete than those of his contemporaries.
He was a comprehensive thinker within the scope of an exceedingly narrow set of presuppositions, and he produced one of the most systematic philosophies of the early modern period—an almost completely consistent description of humankind, civil society, and nature according to the tenets of mechanistic materialism.
As method, philosophy is simply reasoning or calculating by the use of words as to the causes or effects of phenomena. When a person reasons from causes to effects, he reasons synthetically; when he reasons from effects to causes, he reasons analytically.
His dogmatic metaphysical assumption was that physical reality consists entirely of matter in motion. The real world is a corporeal universe in constant movement, and phenomena, or events, the causes and effects of which it is the business of philosophy to lay bare, consist of either the action of physical bodies on each other or the quaint effects of physical bodies upon minds.
Physics is the science of the motions and actions of physical bodies conceived in terms of cause and effect. And civil philosophy deals with the concerted actions of people in a commonwealth—how, in detail, the wayward wills of human beings can be constrained by power i.
But there are also elements in it that make it characteristically English. Empiricism has been a basic and recurrent feature of British intellectual life, and its nominalist and sensationalist roots were already clearly evident in both Bacon and Hobbes.
A crucial figure in the history of philosophy, Descartes combined however unconsciously or even unwillingly the influences of the past into a synthesis that was striking in its originality and yet congenial to the scientific temper of the age. In the minds of all later historians, he counts as the progenitor of the modern spirit of philosophy.
National Library of Medicine, Bethesda, Maryland From the past there seeped into the Cartesian synthesis doctrines about God from Anselm and Aquinas, a theory of the will from Augustine, a deep sympathy with the Stoicism of the Romans, and a skeptical method taken indirectly from Pyrrho and Sextus Empiricus.
But Descartes was also a great mathematician—he invented analytic geometry —and the author of many important physical and anatomical experiments. Each of the maxims of Leonardo, which constitute the Renaissance worldview, found its place in Descartes: Bacon and Descartes, the founders of modern empiricism and rationalism, respectively, both subscribed to two pervasive tenets of the Renaissance: The metaphor is revealing, for it indicates that for Descartes—as for Bacon and Galileo—the most important part of the tree was the trunk.
In other words, Descartes busied himself with metaphysics only in order to provide a firm foundation for physics.
Thus, the Discourse on Method, which provides a synoptic view of the Cartesian philosophy, shows it to be not a metaphysics founded upon physics as was the case with Aristotle but rather a physics founded upon metaphysics.
Thus his metaphysics in essence consisted of three principles: To employ the procedure of complete and systematic doubt to eliminate every belief that does not pass the test of indubitability skepticism. To accept no idea as certain that is not cleardistinct, and free of contradiction mathematicism.
From the indubitability of the self, Descartes inferred the existence of a perfect God; and, from the fact that a perfect being is incapable of falsification or deception, he concluded that the ideas about the physical world that God has implanted in human beings must be true.
Cartesian metaphysics is the fountainhead of rationalism in modern philosophy, for it suggests that the mathematical criteria of clarity, distinctness, and logical consistency are the ultimate test of meaningfulness and truth.
This stance is profoundly antiempirical. Yet for Descartes the understanding is vastly superior to the senses, and only reason can ultimately decide what constitutes truth in science.
Cartesianism dominated the intellectual life of continental Europe until the end of the 17th century. It was a fashionable philosophy, appealing to learned gentlemen and highborn ladies alike, and it was one of the few philosophical alternatives to the Scholasticism still being taught in the universities.
Precisely for this reason it constituted a serious threat to established religious authority. Only in the liberal Dutch universities, such as those of Groningen and Utrecht, did Cartesianism make serious headway. Certain features of Cartesian philosophy made it an important starting point for subsequent philosophical speculation.
As a kind of meeting point for medieval and modern worldviews, it accepted the doctrines of Renaissance science while attempting to ground them metaphysically in medieval notions of God and the human mind.“A principal fruit of friendship,” Francis Bacon wrote in his timeless meditation on the subject, “is the ease and discharge of the fulness and swellings of the heart, which passions of all kinds do cause and induce.” For Thoreau, friendship was one of life’s great rewards.
But in today. Aristotle conceives of ethical theory as a field distinct from the theoretical sciences. Its methodology must match its subject matter—good action—and must respect the fact that in this field many generalizations hold only for the most part. For example, in Christianity, friendship is secondary to the universal love of agape; in Judaism, friendship is secondary to the love of family, but in Islamic teaching friendship - is a force that promotes the identification that does not value things, and horizons of its existence in the world.
Friendship, as understood here, is a distinctively personal relationship that is grounded in a concern on the part of each friend for the welfare of the other, for the other’s sake, and that involves some degree of .
“True friendship multiplies the good in life and divides its evils.
Strive to have friends, for life without friends is like life on a desert island to find one real friend in . Quotes on Value, Values, Ethics, Moral and Virtue; Quotations from Socrates to Hsi-Tang, from Genesis to The Dalai Lama and from Warren Buffett to George W.