The dog that trots about finds a bone.
Problems are not stop signs, they are guidelines.
Leap, and the net will appear.
Know or listen to those who know.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
Do not weep do not wax indignant. Understand.
Well done is better than well said.
You never know what motivates you.
Quality is not an act, it is a habit.
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.