The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
海洋從四面八方包圍著地球,而我們只居住在其中一小部分。
兒童不僅在心理上是被動的,而且像一個空花瓶,是一個有待于充滿及塑造的生命。
The path to clean energy begins with making current practices cleaner.
奮斗永不停歇。