《礼记·祭统》
所以君子的祭祀，一定要自己竭尽诚心，这样才能使外部动作也端重起来。
是故君子之祭也，必身自尽也，所以明重也。
Therefore, when a gentleman makes a sacrifice, he must exhaust his own sincerity, so that his outward actions become serious too. 
<s>[INST] Translate to English, please: 是故君子之祭也，必身自尽也，所以明重也。 [/INST] Therefore, when a gentleman makes a sacrifice, he must exhaust his own sincerity, so that his outward actions become serious too. </s>
Translate to English, please: 是故君子之祭也，必身自尽也，所以明重也。
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Therefore, when a gentleman makes a sacrifice, he must exhaust his own sincerity, so that his outward actions become serious too.
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