Be gentle to all and stern with yourself.
Know or listen to those who know.
Quality is not an act, it is a habit.
Either you run the day or the day runs you.
The most effective way to do it, is to do it.
It's always too early to quit.
Begin to be now what you will be hereafter.
To be a good loser is to learn how to win.
Only the educated are free.
If you can dream it, you can do it.
Is it right to probe so deeply into Nature's secrets? The question must here be raised whether it will benefit mankind, or whether the knowledge will be harmful.