Know or listen to those who know.
Be gentle to all and stern with yourself.
Do not weep do not wax indignant. Understand.
Be kind whenever possible. It is always possible.
It's always too early to quit.
The wise does at once what the fool does at last.
Only the educated are free.
After a storm comes a calm.
Either you run the day or the day runs you.
Who seeks shall find.
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.