“Peace cannot be kept by force; it can only be achieved by understanding.”

“The important thing is not to stop questioning. Curiosity has its own reason for existing.”

“It has become appallingly obvious that our technology has exceeded our humanity.”

“If we knew what it was we were doing, it would not be called research, would it?”

“Sometimes one pays most for the things one gets for nothing.”

“Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted.”

“Few are those who see with their own eyes and feel with their own hearts.”

“Everything should be as simple as it is, but not simpler.”

“The world is not dangerous because of those who do harm but because of those who look at it without doing anything”

“Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.”

“I don’t know, I don’t care, and it doesn’t make any difference!”

“The only real valuable thing is intuition.”

“If you can’t explain it simply, you don’t understand it well enough”

“Only a life lived for others is a life worth while.”

“Logic will get you from A to B. Imagination will take you everywhere.”