《韩非子·解老》
圣人虽然不曾看见祸患的苗头，就虚静无为地服从于大小规律，这叫 早服 。
圣人虽未见祸患之形，虚无服从于道理，以称蚤服。
Although the sage has never seen the signs of calamity, they obey the law of greatness and smallness by being tranquil and inactive, which is called serving early.