Truth is the daughter of time, not of authority.
Truth emerges more readily from error than from confusion.
Truth is a good dog but always beware of barking too close to the heels of an error, lest you get your brains kicked out.
Truth is so hard to tell, it sometimes needs fiction to make it plausible.
Science is but an image of the truth.
What is truth? said jesting Pilate and would not stay for an answer.
It is impossible to love and to be wise.
A prudent question is one-half of wisdom.
Wise men make more opportunities than they find.
Silence is the sleep that nourishes wisdom.