《吕氏春秋·论·士容论》
种得过早的豆子，一定长得过长而且爬蔓，叶子虚弱，茎节稀疏，豆荚小又不长粒。
先时者，必长以蔓，浮叶疏节，小荚不实。
Beans planted too early will have an excessive growth of vine, making its leaves flaccid and spindly, and its pea pods will be small and sterile.