If you have done something meritorious, you experience pleasure and happiness; if wrong things, suffering. A happy or unhappy life is your own creation. Nobody else is responsible. If you remember this, you won’t find fault with anybody. You are your own best friend as well as your worst enemy. (99)
There’s no value in digging shallow wells in a hundred places. Decide on one place and dig deep. Even if you encounter a rock, use dynamite and keep going down. If you leave that to dig another well, all the first effort is wasted and there is no proof you won’t hit rock again. (52)