I'm the reason your gravity won't pull.

天下的事情，祸患常常产生于疏忽细微之处，而人的志向也要警惕逐渐放纵。

"The key to successful verification is to start with a clear and precise specification of what the system is supposed to do."

The city is the ultimate architectural challenge.

The purpose of mental activity is successful living.

耐心是投资成功的关键。