问题是,我们是否乐于假设我们的孙子孙女可能永远无法在大象的图片书之外看到大象?
The real challenge is not to build a cheap house, but to build a house that is cheap to live in.
Science is not about being right; it's about being less wrong.
每一项科学发现都应该以其对人类福祉的贡献来衡量。