Never complain and never explain.

To know oneself, one should assert oneself.

I can, therefore I am.

Know or listen to those who know.

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

The most effective way to do it, is to do it.

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

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

Be gentle to all and stern with yourself.