Truth will not make us rich, but it will make us free.
Contentment is rare among men as it is natural among animals
To say nothing, especially when speaking, is half the art of diplomacy.
Peace is an unstable equilibrium, which can be preserved only by acknowledged supremacy or equal power.
As knowledge grew, fear decreased; men thought less of worshiping the unknown, and more of overcoming it.
Moral codes adjust themselves to environmental conditions.