量子力学的本质在于它提供了一个数学框架，用于描述原子和亚原子层面上物质的行为。

Millions saw the apple fall, but Newton asked why.

Persist in doing what you love, one day you will be seen.

记忆是我们随身携带的日记。

激励很重要，因为它们以可预测的方式引导行为。

"Poetry is the spontaneous overflow of powerful feelings: it takes its origin from emotion recollected in tranquility."

故事永远不会完成，只会被放弃。