Never complain and never explain.

To know oneself, one should assert oneself.

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

By failing to prepare, you are preparing to fail.

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

Expect problems and eat them for breakfast.

The dog that trots about finds a bone.

If you're going through hell, keep going.

Go for it now. The future is promised to no one.