心若是牢笼，处处为牢笼，自由不在外面，而在于内心。

My ambition is always to get better, to keep improving.

孤独是可怕的——确实如此——但与人在一起仍然感到孤独也同样可怕。

The rise of China represents the most significant challenge to the liberal international order since the end of the Cold War.

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

我必须承认，我从来看不出她有什么美丽之处。她的脸太瘦了，她的肤色没有光泽，她的五官一点也不好看。她的鼻子缺乏特色；它的线条上没有任何标志。她的牙齿还过得去，但并不出奇；至于她的眼睛，有时被称为很漂亮，我从来没看出什么非凡之处。

Challenges are opportunities in disguise. Every problem in aquaculture pushes us toward smarter solutions.

Some birds are not close, because they are too bright.

The artist's job is to make the invisible visible.