The Earth is not a rigid body, but a dynamic system in which convection currents play a fundamental role.
地球不是一个刚体，而是一个动态系统，其中对流起着基本作用。
The most beautiful works of art are those in which necessity and freedom are in perfect balance.
People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed; never throw out anyone.