Not everything that is faced can be changed, but nothing can be changed until it is faced.

他的诗，如同几何圆规般，画著圆，时而亲密贴近，时而广及全球，唯一不变的是，圆规的尖端总是插定在囚室里。

All money is a matter of belief.

You must be the best judge of your own happiness.

统一自然界所有力的挑战是几十年来推动理论物理学发展的动力之一。