"Why should we... constantly worry ourselves... as to what should be done and how, and what should not be done and how not? We know that the train carries all loads, so after getting on it why should we carry our small luggage on our head to our discomfort, instead of putting it down in the train and feeling at ease?"

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See if you can catch yourself complaining in either speech or thought, about a situation you find yourself in, what other people do or say, your surroundings, your life situation, even the weather. To complain is always nonacceptance of what is. It invariably carries an unconscious negative charge. When you complain, you make yourself a victim. Leave the situation or accept it. All else is madness.

— Eckhart Tolle