Mathematics is the music of reason.
数学是理性的音乐。
多线进化论是研究特定文化如何适应特定环境的进化过程。
记住，希望是好的。
Global infrastructure development requires cross-border cooperation and resource sharing.
有些人感受雨，而其他人只是被淋湿。
The value of unpaid work is often invisible in economic measures, yet it is the backbone of society.
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
