True growth happens when you step outside your comfort zone and embrace change.

I'm not here to be liked, I'm here to be loved.

The psychologist must be a dispassionate observer.

数学的本质在于它的自由。

林业的未来属于那些将树木视为生命系统而不仅仅是立木库存的人。

There is no true liberty without the liberty of thought.

技能和信心是无敌的武器。