No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
Silence is not the absence of sound, but the presence of something deeper.
一个地方的灵魂常常隐藏在它的寂静中。
The difference between good and great is the attention to detail.
The power of poetry is in its simplicity and depth.
某种无形力量的可怕阴影，虽不可见，却在我们中间漂浮。
制造业的未来在于平衡效率与环境管理。
You don't have to understand life. You just have to live it.