"You never know how much time you'll have."

"It is like taking food. All you can do is to bite off, chew and swallow. All else is unconscious and automatic. Listen, remember and understand – the mind is both the actor and the stage. All is of th…"

"Stemming this tide will require much better coordination and information sharing among countries every step of the way. We should not stop pressing until Turkey, where most foreign fighters cross into…"

"It is hoped that systematic study of the light changes of all the variables, nearly two thousand in number, in the two Magellanic Clouds may soon be undertaken at this Observatory."

"A complete theory of evolution must acknowledge a balance between “external” forces of environment imposing selection for local adaptation and “internal” forces representing constraints of inheritance…"