Easy to do are things that are bad and harmful to oneself. But exceedingly difficult to do are things that are good and beneficial.
Gautama BuddhaI do not perceive even one other thing, O monks, that when undeveloped and uncultivated entails such great suffering as the mind. The mind when undeveloped and uncultivated entails great suffering.
Gautama BuddhaBe lamps unto yourselves. Be refuges unto yourselves. Take yourself no external refuge. Hold fast to the truth as a lamp. Hold fast to the truth as a refuge. Look not for a refuge in anyone besides yourselves. And those, Ananda, who either now or after I am dead, Shall be a lamp unto themselves, Shall betake themselves as no external refuge, But holding fast to the truth as their lamp, Holding fast to the truth as their refuge, Shall not look for refuge to anyone else besides themselves, It is they who shall reach to the very topmost height; But they must be anxious to learn.
Gautama Buddha