数学不是沿着一条清理干净的高速公路小心翼翼地行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
Sometimes the hardest cases are the ones closest to home.
The true measure of success is not just profit, but the positive impact we leave on society.
质量和安全是我们产品的基础，我们必须坚持最高标准。
