The only limit to our realization of tomorrow is our doubts of today.
Every lump of coal we mine keeps the lights on in someone's home.
The world is full of people whose notion of a satisfactory future is, in fact, a return to the idealised past.
解释:大多数果实都带有酸味,而覆盆子却是甘甜的,体现了中药味道的多样性。
农业的真正进步是用健康衡量的,而不仅仅是产量。
The truth is often hidden in the shadows, and it takes courage to find it.