乐观主义者倾向于将他们的麻烦解释为暂时的、可控的和特定于一种情况的。另一方面,悲观主义者认为他们的麻烦会永远存在,破坏他们所做的一切,并且无法控制。
As long as man continues to be the ruthless destroyer of lower living beings, he will never know health or peace. For as long as men massacre animals, they will kill each other.
领导力是关于以清晰和信念做出艰难的决定。
The biggest risk is not taking any risk.
The only limit to our realization of tomorrow is our doubts of today.