The more we learn, the more various and intricate are the new avenues of research which open before us.


The Recent Development of Physical Science, Chapter I (p. 16), John Murray. 1904


The more we learn, the more various and intricate are the new avenues of research which open before us.

The more we learn, the more various and intricate are the new avenues of research which open before us.

The more we learn, the more various and intricate are the new avenues of research which open before us.

The more we learn, the more various and intricate are the new avenues of research which open before us.