Who seeks shall find.
To know oneself, one should assert oneself.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
Begin to be now what you will be hereafter.
If you've got a talent, protect it.
Know or listen to those who know.
The secret of getting ahead is getting started.
The wise does at once what the fool does at last.
Be gentle to all and stern with yourself.
The object of pure physics is the unfolding of the laws of the intelligible world the object of pure mathematics that of unfolding the laws of human intelligence.