Every experiment, even the ones that fail, teaches you something valuable.
The deepest problems in mathematics often arise from the simplest questions.
你不尝试，就100%会错过机会。
The future of energy lies in finding the balance between traditional resources and renewable alternatives.
选自汉·桓宽《盐铁论·力耕》。道：放大。治理百姓的方法，在于节约用度，注重农桑。