Quality is not an act, it is a habit.
You never know what motivates you.
If you're going through hell, keep going.
By failing to prepare, you are preparing to fail.
What you do today can improve all your tomorrows.
If you can dream it, you can do it.
Expect problems and eat them for breakfast.
Problems are not stop signs, they are guidelines.
After a storm comes a calm.
It's always too early to quit.
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.