Mathematics is not a spectator sport. You have to get involved.
Collaboration between governments, companies and civil society is essential to achieve our climate goals.
物种之间的边界比我们想象的更具渗透性。
"The best way to predict the future is to invent it."
"Travel is fatal to prejudice, bigotry, and narrow-mindedness."
世界不是它看起来的样子;它是我们相信的样子。