小知不及大知，小年不及大年。奚以知其然也？朝菌不知晦朔，蟪蛄不知春秋，此小年也；楚之南有冥灵者，以五百岁为春，五百岁为秋，上古有大椿者，以八千岁为春，八千岁为秋，此大年也。
小智慧不及大智慧，寿命短不及寿命长。怎么知道会是这样呢？有一种早上生的菌，活不过一天，不知道白天和黑夜；寒蝉春生夏死、夏生秋死，活不过一年，不知道春秋，这就叫短寿。楚国的南方有一种大树叫“冥灵”，以五百年为春，五百年为秋；上古有“大椿”树，以八千年为春，八千年为秋，这就叫长寿。
I'm not a rapper, I'm a math legend.
He who refuses to do arithmetic is doomed to talk nonsense.
Mathematics is the language in which the universe writes its deepest secrets.
Success does not consist in never making mistakes but in never making the same one a second time.
Leadership is about listening as much as it is about directing.