Well done is better than well said.
Be kind whenever possible. It is always possible.
Only the educated are free.
Be gentle to all and stern with yourself.
To be a good loser is to learn how to win.
If you think you can do it, you can.
To know oneself, one should assert oneself.
I can, therefore I am.
The dog that trots about finds a bone.
The wise does at once what the fool does at last.
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.