If you think you can do it, you can.

If you can dream it, you can do it.

To know oneself, one should assert oneself.

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

Never complain and never explain.

The secret of getting ahead is getting started.

Be gentle to all and stern with yourself.

What you do today can improve all your tomorrows.

Without hard work, nothing grows but weeds.