Quote by Freeman Dyson
"We are not to assume that all that has a real effect on us is real."
More from Freeman Dyson
"Science is a creative activity. It's like all creative activities; it's based on taste."
"The important thing is not to stop questioning. Curiosity has its own reason for existing."
"I have the feeling that my life is a story that has not yet been written."
"For a physicist, mathematics is not just a tool by which phenomena can be described; rather, it is the main source of concepts and principles by which to frame new theories."