Do not weep do not wax indignant. Understand.
Without hard work, nothing grows but weeds.
If you can dream it, you can do it.
Only the educated are free.
You never know what motivates you.
It's always too early to quit.
Wherever you are - be all there.
Be kind whenever possible. It is always possible.
Either you run the day or the day runs you.
To know oneself, one should assert oneself.
Beauty is the first test: there is no permanent place in the world for ugly mathematics.