世界上最好和最美丽的东西是看不见甚至摸不到的——它们必须用心去感受。
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
What a fool old Adam was. Had everything his own way; had succeeded in gaining the love of the best looking girl in the neighborhood, but yet unsatisfied with his conquest he had to eat a miserable little apple.
翻译：贤明的君主和将领，之所以一出兵就可以战胜敌人，成就的功业超过一般人，是因为他们能事先探明敌情。事先探明敌情，不能使用占卜的手段获取，不可用类比的方法获取，也不可推验日月星辰运行来获取。一定要取之于人，取之于了解敌情的人。
The challenge of computer science is not just to build faster machines, but to understand the very fabric of computational possibility.
In mathematics, the art of proposing a question must be held of higher value than solving it.
Collaboration is the root system of progress in sustainable forestry.
