Compassion for animals is intimately connected with goodness of character.
在经济学中,规则的小变化可能导致结果的大变化。
"A good picture book leaves room for the reader's imagination to grow."
The desert teaches you the value of water, and silence teaches you the value of words.
The only way to learn mathematics is to do mathematics.
Success is not final, failure is not fatal: it is the courage to continue that counts.