To obtain an assured favorable response from people, it is better to offer them something for their stomachs instead of their brains.

Everything that is really great and inspiring is created by the individual who can labor in freedom.

However we select from nature a complex [of phenomena] using the criterion of simplicity, in no case will its theoretical treatment turn out to be forever appropriate (sufficient).... I do not doubt that the day will come when [general relativity], too, will have to yield to another one, for reasons which at present we do not yet surmise. I believe that this process of deepening theory has no limits.

As the area of light expands, so does the perimeter of darkness.

I have reached an age where if someone tells me to wear socks, I dont have to

Science is a wonderful thing if one does not have to earn one's living at it.

Condemnation before investigation is the highest form of ignorance.