It's always too early to quit.

Who seeks shall find.

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

If you're going through hell, keep going.

By failing to prepare, you are preparing to fail.

Be kind whenever possible. It is always possible.

To know oneself, one should assert oneself.

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

Things do not happen. Things are made to happen.