It's always too early to quit.

Do not weep do not wax indignant. Understand.

Be thine own palace, or the world's thy jail.

Expect problems and eat them for breakfast.

Never complain and never explain.

The wise does at once what the fool does at last.

The dog that trots about finds a bone.

Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.