Henri Poincaré Quote

The importance of a fact is known by its fruits, that is to say, by the amount of thought which it enables us to economize.


Annual Report of the Board of Regents of the Smithsonian Institution, 1909, The Future of Mathematics (p. 125)


The importance of a fact is known by its fruits, that is to say, by the amount of thought which it enables us to economize.

The importance of a fact is known by its fruits, that is to say, by the amount of thought which it enables us to economize.

The importance of a fact is known by its fruits, that is to say, by the amount of thought which it enables us to economize.

The importance of a fact is known by its fruits, that is to say, by the amount of thought which it enables us to economize.