The most dangerous kind of waste is the waste we do not recognize.
计算复杂性的美在于它能够根据问题的固有难度对问题进行分类。
The heart may think it knows better: the senses know that absence blots people out. We have really no absent friends.
The forest does not belong to us—we belong to the forest, and our duty is to protect it.
没有执行的创新只是一个想法。