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.

The more flesh, the more worms; the more possessions, the more worry.

Say not: “When I have free time I shall study”, for you may perhaps never have any free time

Golden Rule”: “That which is hateful to you, do not do to your fellow. That is the whole Torah; the rest is the explanation; go and learn.

If not you, who? If not now, when?

Do not unto others that which is hateful unto thee.

What you yourself hate, don't do to your neighbor. This is the whole law; the rest is commentary. Go and study.