免费的疫苗比昂贵的治疗更有价值，但更难推广。
Free vaccines are more valuable than expensive treatments, yet harder to promote.
The task of psychology is to analyze the contents of consciousness into its elements.
Being powerful is like being a lady. If you have to tell people you are, you aren't.
The night is a great book, but the stars are its letters.
农业的未来在于科技和可持续发展。
我们看待事物的方式、而不是事物本身如何，决定着一切。
"Tennis is a mental game. Everyone is fit, everyone hits great shots."
真相不是我们找到的东西，而是我们创造的东西。