Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
数学不是沿着一条清理得很好的高速公路小心行进,而是一次进入陌生荒野的旅程,探险者常常会迷路。
Sustainability is not an option, it's the only way forward for responsible businesses.
True leadership means making tough decisions today that will benefit future generations.