I can, therefore I am.
Never complain and never explain.
Be gentle to all and stern with yourself.
Do not weep do not wax indignant. Understand.
The most effective way to do it, is to do it.
Who seeks shall find.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
Begin to be now what you will be hereafter.
If you've got a talent, protect it.
The frontiers of knowledge in the various fields of our subject are expanding at such a rate that, work as hard as one can, one finds oneself further and further away from an understanding of the whole.