Bertrand Russell: Science is what you know. Philosophy is what you don't know.



Cicero:
There is no statement so absurd that no philosopher will make it.



Freda Adler:
Stripped of ethical rationalizations and philosophical pretensions, a crime is anything that a group in power chooses to prohibit.



George Bernard Shaw:
A fool's brain digests philosophy into folly, science into superstition, and art into pedantry. Hence University education.






H. L. Mencken: Philosophy consists very largely of one philosopher arguing that all others are jackasses. He usually proves it, and I should add that he also usually proves that he is one himself.

Immanuel Kant:
Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.



Mark Twain:
All schools, all colleges, have two great functions: to confer, and to conceal, valuable knowledge. The theological knowledge which they conceal cannot justly be regarded as less valuable than that which they reveal. That is, when a man is buying a basket of strawberries it can profit him to know that the bottom half of it is rotten.
1908, notebook