Take care of yourself - you never know when the world will need you.
If I am not for myself, then who will be for me? But when I am for myself, then what am "I"? And if not now, when?
A single candle can light a thousand more without diminishing itself.
The shy man will not learn; the impatient man should not teach.
The more flesh, the more worms; the more possessions, the more worry.
Moreover he saw a skull floating on the surface of the water and he said unto it: Because you drowned others they drowned you; and those that drowned you will eventually be drowned.