I don't believe in guilt, I believe in living on impulse as long as you never intentionally hurt another person.

Sustainability isn't an option; it's a necessity for the future of our planet.

行为由驱力和习惯强度的相互作用决定。

Algebraic geometry is the study of zeros of polynomials.

自然界运行的规律就是，发展到尽头则走向反面，发展到极盛则走向衰落。

I'm not a rapper, I'm a Grammy winner.

林业的未来在于平衡经济需求与生态责任。