Rain falls, wind blows, plants bloom, leaves mature and are blown away; these phenomena are all interrelated with causes and conditions, are brought about by them, and disappear as the causes and conditions change.
Don't believe a teaching just because you've heard it from a man who's supposed to be holy, or because it's contained in a book supposed to be holy, or because all your friends and neighbors believe it. But whatever you've observed and analyzed for yourself and found to be reasonable and good, then accept that and put it into practice.
Be 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.
What we are today comes from our thoughts of yesterday, and our present thoughts build our life of tomorrow: our life is the creation of our mind. If a man speaks or acts with an impure mind, suffering will follow him as the wheel of the cart follows the beast that draws the cart. If a man speaks or acts with a pure mind, joy follows him as his own shadow.
Man's troubles are rooted in extreme attention to senses, thoughts, and imagination. Attention should be focused internally to experience a quiet body and a calm mind.
Sometime, somewhere you take something to be the truth. But if you cling to it too strongly, then even when the truth comes in person and knocks on your door, you will not open it.