"Every book is a new adventure, a new world to explore."
每本书都是一次新的冒险，一个新的世界去探索。
The pursuit of power is the primary goal of states in the international system.
Happiness， like unhappiness， is a proactive choice.
The deep, personal material of the latter half of your life is your children. You can write about your parents when they're gone, but your children are still going to be here, and you're going to want them to come and visit you in the nursing home.
Profit and sustainability must walk hand in hand; one cannot long exist without the other.
Your attitude, not your aptitude, will determine your altitude.