I prefer nothing, unless it is true.

It is necessary to do right; it is not necessary to be happy.

If you didn't do anything that wasn't good for you it would be a very dull life. What are you gonna do? Everything that is pleasant in life is dangerous. Have you noticed that? I'd like to find the bastard that thought that one up.

Do not consider painful what is good for you.

Nothing in this world is worth having or worth doing unless it means effort, pain, difficulty.

Nothing is in reality either pleasant or unpleasant by nature but all things become so through habit.

The aim of the wise is not to secure pleasure, but to avoid pain.

If we do not find anything very pleasant, at least we shall find something new.

Do not seek pleasure for its own sake.

until you have formed the habit of looking for the good instead of the bad there is in others, you will be neither successful nor happy.

There may be good but there are no pleasant marriages.

It may be necessary temporarily to accept a lesser evil, but one must never label a necessary evil as good.

nothing cruel is in fact beneficial; for cruelty is extremely hostile to the nature of man, which we ought to follow.

It is not necessary to accept everything as true, one must only accept it as necessary