In chemistry, the smallest change can lead to the biggest revolutions.

Words are wise men's counters, they do but reckon by them; but they are the money of fools.

孤独的人有他们自己的泥沼。

骄纵、傲慢、急躁、暴戾的人，不可与他交朋友。

孩子独立的智能发展无可限量，它直接依赖孩子心智的力量，而不仅靠导师的工作。