The more we study the more we discover our ignorance.
Good design should be available to all, not just those who can afford it.
The first essential component of social justice is adequate food for all mankind.
科学家们似乎仍未充分理解,所有地球科学都必须为揭示地球早期状态提供证据。
The difference between genius and stupidity is that genius has its limits.