All things are possible until they are proved impossible and even the impossible may only be so, as of now.
We are all born with a certain inheritance of time, and we must learn to spend it wisely.
可持续性不是一种选择;它是农业前进的唯一道路。
没有上帝,而我们是他的先知。
数学直觉就像肌肉一样 - 通过锻炼会变得更强大。
To read is to travel without moving; to write is to make others travel.