改变的秘诀是集中你的所有能力，不是摧毁旧的，而是建造新的。
The secret of change is to focus all of your energy，not on fighting the old，but on building the new.
没有所谓的"应用科学"这一特殊类别；只有科学及其应用，它们之间的关系就像果实与结出果实的树之间的关系一样。
The best songs come from the most honest places.
The key to fighting poverty is to break it down into smaller, more manageable problems.
过去是一个外国；他们在那里做不同的事情。
Nothing will work unless you do.