Sustainability is not an option; it's a necessity for the future of agriculture.

Sustainability is no longer an option—it's a business imperative.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

【译文】知心的话只能说给知心人来听，不是知心人就不要和他谈。

你不能通过思考来过生活。你必须通过生活来过它。