唯一存在的限制是你给自己设定的限制。

Stray birds of summer come to my window to sing and fly away. And yellow leaves of autumn, which have no songs,flutter and fall there with a sigh.

"The world breaks everyone, and afterward, many are strong at the broken places."

智者能预测未来，愚人只看现在。

最重要的是要有一颗善良的心和良好的态度。

You can't have the good without the bad. So I just take the bad with the good and move on.

Whereof one cannot speak, thereof one must be silent.

数学是逻辑思想的诗歌。