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It is better for you to be free of fear lying upon a pallet, than to have a golden couch and a rich table and be full of trouble.
To truly understand a problem, you must first simplify it to its core essence.
预测未来最可靠的方法就是去创造未来。
The way positive reinforcement is carried out is more important than the amount.
To know good and evil is not enough; one must also do them.