If you would not step into the harlot's house, do not go by the harlot's door.Thomas Secker
There are in nature neither rewards nor punishments, there are consequences.Robert G. Ingersoll
Let your life be a counter friction to stop the machine.Henry David Thoreau
Error is discipline through which we advance.William Ellery Channing
Civilization is the distance man has placed between himself and his excreta.Brian Aldiss
The safest way to double your money is to fold it over and put it in your pocket.Kin Hubbard
Never expose yourself unnecessarily to danger; a miracle may not save you...and if it does, it will be deducted from your share of luck or merit.
Education is like a double-edged sword. It may be turned to dangerous uses if it is not properly handled.