Being a mother is quite tiring. There's not much time to do anything. You just rush around and it's hard work.
The current state of knowledge is a moment in history changing just as rapidly as the state of knowledge in the past has ever changed and in many instances more rapidly.
In other words knowledge of the external world begins with an immediate...
Scientific knowledge is in perpetual evolution it finds itself changed from...
To express the same idea in still another way I think that human knowledge...
There is no reason to repeat bad history.
There were various turning points, but the main one at the beginning was...
Look into the heavens and say, “It’s my turn to make history.
