They had said that the city was a paradise, but I found it a hell.

Reinforcement is the central factor in the acquisition of new behavior patterns.

Safety is the lifeline of the petroleum industry; it must never be neglected.

We are not doing e-commerce; we are doing social e-commerce.

首先，你应该写作来取悦自己。你根本不应该在乎其他任何人。

The world is what it is; men who are nothing, who allow themselves to become nothing, have no place in it.

Architecture is the learned game, correct and magnificent, of forms assembled in the light.