"The major threats to survival that our ancestors faced - predators, starvation, disease - left their mark on our fears and anxieties."

The journey of discovery is filled with uncertainties, but it is these uncertainties that make science so exciting.

You are not the opinion of somebody who doesn't know you.

I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.

"A book is a mirror: if a fool looks in, no sage can look out."