Do not weep do not wax indignant. Understand.
If you think you can do it, you can.
Know or listen to those who know.
Well done is better than well said.
Wherever you are - be all there.
The dog that trots about finds a bone.
Go for it now. The future is promised to no one.
After a storm comes a calm.
Never complain and never explain.
I can, therefore I am.
Imagination is as vital to any advance in science as learning and precision are essential for starting points.