Learning is any change in a system that produces a more or less permanent change in its capacity to adapt to its environment.
学习是系统中产生的任何变化，这种变化或多或少会永久性地改变其适应环境的能力。
领导力在于让他人因为你的存在而变得更好，并确保这种影响在你离开后依然持续。
We don't need another hero.
The only time a dog gets complimented is when he doesn't do anything!