人需要困扰，困扰是心理健康的必需之物。

我认为冒险和不害怕失败是很重要的。

疼痛研究不仅仅是缓解痛苦；它关乎理解人类生物学的一个基本方面。

A man is like a fraction whose numerator is what he is and whose denominator is what he thinks of himself. The larger the denominator, the smaller the fraction.

I like everything that has no style: dictionaries, photographs, nature, myself and my paintings.

Sustainability isn't a choice—it's our responsibility to future generations.