To know oneself, one should assert oneself.
The wise does at once what the fool does at last.
If you can dream it, you can do it.
If you think you can do it, you can.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
After a storm comes a calm.
Things do not happen. Things are made to happen.
If you've got a talent, protect it.
The dog that trots about finds a bone.
Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic, and consider it an arid science. In reality, however, it is a science which requires a great amount of imagination.