To know oneself, one should assert oneself.

Begin to be now what you will be hereafter.

If you think you can do it, you can.

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

The dog that trots about finds a bone.

By failing to prepare, you are preparing to fail.

It's always too early to quit.

If you're going through hell, keep going.

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