Sustainability isn't an option—it's a necessity for the future of agriculture.
可持续性不是一种选择，而是农业未来的必然需求。
Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."
自行车是我改变的工具。它是我产生影响的手段。
历史是人类的集体记忆。
To sing is to pray twice.
