Contribute to the whole and you will likely be rewarded. Natural selection leads to better qualities being retained and passed along (e.g., in better genes, better abilities to nurture others, better products, etc.). The result is a constant cycle of improvement for the whole.
为整体做出贡献，你可能会得到回报。自然选择会导致更好的品质被保留和传承（例如，更好的基因、更好的培育他人的能力、更好的产品等）。结果是整体不断改进的循环。

source:https://www.principles.com/principles/21723ffd-f4ca-488a-8b9e-8072798f348e/