If you think you can do it, you can.

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

To know oneself, one should assert oneself.

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

By failing to prepare, you are preparing to fail.

Things do not happen. Things are made to happen.

You never know what motivates you.

The secret of getting ahead is getting started.

I can, therefore I am.