In peace, sons bury their fathers. In war, fathers bury their sons.
Don't go around saying the world owes you a living. The world owes you nothing. It was here first.
可持續(xù)性不是一種選擇,而是必須——如果我們想在養(yǎng)活不斷增長的人口的同時不破壞地球的話。
最大的失敗是放棄,最大的敵人是自己,最大的對手是時間。