是谓是，非谓非曰直。
对的就说是对的，错的就说是错的，就是所谓的正直。
Humans are allergic to change. They love to say, 'We've always done it this way.' I try to fight that. That's why I have a clock on my wall that runs counter-clockwise.
电池不仅仅是能量存储设备；它们是可再生能源的推动者。
自然是用数学语言写的。
The brain caps off its second and last growth spurt in your 20s as it rewires itself for adulthood.