It is my inner conviction that the development of science seeks in the main to satisfy the longing for pure knowledge.

In my personal experience I have hardly come to know the wretchedness of mankind better than as a result of the general theory of relativity and everything connected to it. But it doesn't bother me.

Non-cooperation in military matters should be an essential moral principle for all true scientists.

One should not pursue goals that are easily achieved. One must develop an instinct for what one can just barely achieve through one’s greatest efforts.

There is nothing known as "Perfect". Its only those imperfections which we choose not to see!!

People should be more like animals . . . they should be more intuitive; they should not be too conscious of what they do while they do it.

There are few enough people with sufficient independence to see the weaknesses and follies of their contemporaries and remain themselves untouched by them.