数学中发现的快乐就像解开宇宙留给我们的谜题。
The joy of discovery in mathematics is like solving a puzzle that the universe has left for us.
最好的投资是那些能够创造价值的人,而不仅仅是商业模式。
每日不能克服恐惧者,尚未学会人生的第一课。
可持续林业不仅仅是砍伐树木,更是培育文明。
Great deeds are usually wrought at great risks.