Go for it now. The future is promised to no one.
What you do today can improve all your tomorrows.
Quality is not an act, it is a habit.
The dog that trots about finds a bone.
Always desire to learn something useful.
Begin to be now what you will be hereafter.
To be a good loser is to learn how to win.
The wise does at once what the fool does at last.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
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.