The shy man will not learn; the impatient man should not teach.
If not you, who? If not now, when?
Do not unto others that which is hateful unto thee.
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 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?
The more flesh, the more worms; the more possessions, the more worry.