Quiet people have the loudest minds
English theoretical physicist, cosmologist, and author who was the director of research at the Centre for Theoretical Cosmology at the University of Cambridge at the time of his death.
The advantage of a bad memory is that one enjoys several times the same good things for the first time
The heart has its reasons which reason knows not
Dislike in yourself what you dislike in others
We create history by our observation, rather than history creating us
For the things we have to learn before we can do them, we learn by doing them.
The unexamined life is not worth living
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