Skepticism is a virtue in history as well as in philosophy.
Philosophy! Empty thinking by ignorant conceited men who think they can digest without eating!
Experience has shown, and a true philosophy will always show, that a vast, perhaps the larger portion of the truth arises from the seemingly irrelevant.
There is no philosophy which is not founded upon knowledge of the phenomena, but to get any profit from this knowledge it is absolutely necessary to be a mathematician.
I am aware that a philosopher's ideas are not subject to the judgment of ordinary persons, because it is his endeavour to seek the truth in all things, to the extent permitted to human reason by God.
Then their imagination could work wonders upon wonders and invoke the shades of the philosophers, who would instruct them in their art.
The fact is, every thinker, every philosopher, the moment he is forced to abandon his one-sided intellectual occupation by practical necessity, immediately returns to the general point of view of mankind.
Medicine rests upon four pillars - philosophy, astronomy, alchemy, and ethics.
My philosophy is that when I go out of my room, I'm prepared to love everybody I meet, unless they're bad.
Life does not agree with philosophy: There is no happiness that is not idleness, and only what is useless is pleasurable.
Religions do a useful thing: they narrow God to the limits of man. Philosophy replies by doing a necessary thing: it elevates man to the plane of God.