The general struggle for existence of animate beings is not a struggle for raw materials nor for energy which exists in plenty in the form of heat, unfortunately untransformably, in every body; it is a struggle for entropy, which becomes available through the transition of energy from the hot sun to the cold earth.
生物为生存而进行的普遍斗争，不是为了原材料，也不是为了能量——能量以热的形式大量存在于每个物体中（可惜无法转化）；而是为了熵，它通过能量从炽热的太阳转移到寒冷的地球而变得可用。
The beauty of mathematics only shows itself to more patient followers.
Sometimes you just have to pick yourself up and carry on.
