可持续林业不是一种选择；它是一种义务。
写作是一种思考方式，而不仅仅是思想的记录。
最好的书……是那些告诉你你已经知道的事情的书。
优秀与卓越之间的区别在于多走一英里。
Like dear St Francis of Assisi I am wedded to Poverty: but in my case the marriage is not a success.
同理心是创新的关键，因为它让你能够通过他人的眼睛看世界。
The dangerous man is the one who has only one idea, because then he'll fight and die for it.
The question of whether computers can think is like the question of whether submarines can swim.