There is a cosmic law which says that every satisfaction must be paid for with a dissatisfaction.
Never think of results, just do!
Two things in life are infinite; the stupidity of man and the mercy of God.
Man has the possibility of existence after death. But possibility is one thing and the realization of the possibility is quite a different thing.
Practice love on animals first; they react better and more sensitively.
From looking at your neighbor and realizing his true significance, and that he will die, pity and compassion will arise in you for him and finally you will love him.