Arthur Conan Doyle on ideas

Ten years now go further than a thousand then, not so much on account of our finer intellects as because the light we have shows us the way to more.

The highest morality may prove also to be the highest wisdom when the half-told story comes to be finished.

Mr. Holmes, they were the footprints of a gigantic hound!

Great minds discuss ideas. Average minds discuss events. Small minds discuss people.

Eleanor Roosevelt1884–1962

It is the mark of an educated mind to be able to entertain a thought without accepting it.

Aristotle384–322 BC

• Education

One resists the invasion of armies; one does not resist the invasion of ideas.

Victor Hugo1802–1885