We are all given one thing by which our lives are measured, one determination.
We don't inherit the earth from our ancestors; we borrow it from our children.
Science is a tool for empowerment, not control.
不要害怕问愚蠢的问题。因为99%的情况下其他人也想问同样的问题,只是因为怕尴尬而羞于提问。