Be gentle to all and stern with yourself.
By failing to prepare, you are preparing to fail.
Expect problems and eat them for breakfast.
To be a good loser is to learn how to win.
Well done is better than well said.
The wise does at once what the fool does at last.
Problems are not stop signs, they are guidelines.
If you're going through hell, keep going.
If you think you can do it, you can.
Be kind whenever possible. It is always possible.
The human imagination has already come to conceive the possibility of recreating human society.
The product of the scientific imagination is a new vision of relations - like that of artistic imagination.