The greatest cruelty is our casual blindness to the despair of others.
The world is always ending for someone.
数学中最重要的是理解概念,而不仅仅是记忆公式。
众所周知,同样的环境可能被不同的人以截然不同的方式对待,而每个人从自己的角度来看都可能是正确的。
The future belongs to those who believe in the beauty of their dreams.