农业的真正进步是用健康衡量的,而不仅仅是产量。
He who is not contented with what he has,would not be contented with what he would like to have.
I'm not afraid of storms, for I'm learning how to sail my ship.
保持一颗永不僵硬的心,一种永不疲倦的性情,以及一种永不伤人的态度。