A permanent peace cannot be prepared by threats but only by the honest attempt to create a mutual trust. However strong national armaments may be, they do not create military security for any nation nor do they guarantee the maintenance of peace.

The development of general ability for independent thinking and judgment should always be placed foremost, not the acquisition of special knowledge.

Necessity is the mother of all invention.

Innovation is not the product of logical thought, even though the final product is tied to a logical structure.

I think that only daring speculation can lead us further and not accumulation of facts.

I am truly a "lone traveler" and have never belonged to my country, my home, my friends, or even my immediate family, with my whole heart.

[Misquotation; not by Einstein.] If only I had known, I should have become a watchmaker. [Apparently remorseful for his role in the development of the atom bomb.]