Never look for your work in one place and your progress in another.

If we are not stupid or insincere when we say that the good or ill of man lies within his own will, and that all beside is nothing to us, why are we still troubled?

Against specious appearances we must set clear convictions, bright and ready for use. When death appears as an evil, we ought immediately to remember that evils are things to be avoided, but death is inevitable.

In a word, neither death, nor exile, nor pain, nor anything of this kind is the real cause of our doing or not doing any action, but our inward opinions and principles.

We must be afraid of neither poverty nor exile nor imprisonment; of fear itself only should we be afraid.

Be not diverted from your duty by any idle reflections the silly world may make upon you, for their censures are not in your power and should not be at all your concerns.

Reason is not measured by size or height, but by principle.