听天由命

听天由命 [tīng tiān yóu mìng]

1. ■ resign oneself to one's fate; abide one's destiny; be at the mercy of nature; be left to God's mercy; be resigned to one's fate; bow to fate; fatalistic; leave things to chance; let fate have its way; let fate take its course; meet one's fate with resignation; obey the will of Heaven; put the matter into the hands of Fate; resign oneself to Heaven's will; submit to Providence; submit to the will of God; submit to the will of Heaven; trust to luck; wait for one's fate:

播下种子后， 让它听天由命长吧。 Once you've sown, you just have to trust to luck.