What you do today can improve all your tomorrows.
Be thine own palace, or the world's thy jail.
Never complain and never explain.
Expect problems and eat them for breakfast.
Who seeks shall find.
Go for it now. The future is promised to no one.
Be gentle to all and stern with yourself.
The wise does at once what the fool does at last.
Leap, and the net will appear.
If you think you can do it, you can.
The frontiers of knowledge in the various fields of our subject are expanding at such a rate that, work as hard as one can, one finds oneself further and further away from an understanding of the whole.