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

It's always too early to quit.

By failing to prepare, you are preparing to fail.

Do not weep do not wax indignant. Understand.

Always desire to learn something useful.

Things do not happen. Things are made to happen.

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

I can, therefore I am.

Be gentle to all and stern with yourself.