Go for it now. The future is promised to no one.
Never complain and never explain.
By failing to prepare, you are preparing to fail.
Problems are not stop signs, they are guidelines.
Be gentle to all and stern with yourself.
Well done is better than well said.
To be a good loser is to learn how to win.
It's always too early to quit.
Leap, and the net will appear.
The secret of getting ahead is getting started.
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.