Leap, and the net will appear.
Begin to be now what you will be hereafter.
Always desire to learn something useful.
Who seeks shall find.
The dog that trots about finds a bone.
Do not weep do not wax indignant. Understand.
Well done is better than well said.
The wise does at once what the fool does at last.
I can, therefore I am.
Know or listen to those who know.
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.