It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring. (Carl Sagan)

Try to learn something about everything and everything about something. (Thomas Henry Huxley)

People demand freedom of speech to make up for the freedom of thought which they avoid. (Soren Aabye Kierkegaard)

All are lunatics, but he who can analyze his delusion is called a philosopher. (Ambrose Bierce)