To know oneself, one should assert oneself.

If you think you can do it, you can.

I can, therefore I am.

Always desire to learn something useful.

If you're going through hell, keep going.

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

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

Things do not happen. Things are made to happen.

The dog that trots about finds a bone.