Begin to be now what you will be hereafter.
Things do not happen. Things are made to happen.
Do not weep do not wax indignant. Understand.
Quality is not an act, it is a habit.
I can, therefore I am.
If you think you can do it, you can.
Be gentle to all and stern with yourself.
Never complain and never explain.
The dog that trots about finds a bone.
The most effective way to do it, is to do it.
Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic, and consider it an arid science. In reality, however, it is a science which requires a great amount of imagination.