Knowledge is happiness, because to have knowledge - broad, deep knowledge - is to know true ends from false, and lofty things from low.
The heresy of one age becomes the orthodoxy of the next.
Tolerance is the first principle of community; it is the spirit which conserves the best that all men think.
Things must be felt with the heart.
Don't give me the peace that passeth understanding, give me understanding.
No smile is as beautiful as the one that struggles through tears.