If you're going through hell, keep going.
If you think you can do it, you can.
It's always too early to quit.
Well done is better than well said.
The wise does at once what the fool does at last.
Only the educated are free.
Leap, and the net will appear.
The dog that trots about finds a bone.
If you've got a talent, protect it.
Problems are not stop signs, they are guidelines.
A mathematician is a person who can find analogies between theorems a better mathematician is one who can see analogies between proofs and the best mathematician can notice analogies between theories.