Always desire to learn something useful.
Things do not happen. Things are made to happen.
Do not weep do not wax indignant. Understand.
If you've got a talent, protect it.
Quality is not an act, it is a habit.
Be kind whenever possible. It is always possible.
Begin to be now what you will be hereafter.
Well done is better than well said.
Leap, and the net will appear.
If you think you can do it, you can.
All the mathematical sciences are founded on relations between physical laws and laws of numbers, so that the aim of exact science is to reduce the problems of nature to the determination of quantities by operations with numbers.