盈利和环境保护可以而且必须齐头并进。
Profitability and environmental stewardship can—and must—go hand in hand.
We must listen to the land - it tells us what it needs if we're willing to hear.
Don’t be afraid to fail. Be afraid not to try.
在数学中，提出问题的艺术必须比解决问题更有价值。