Arthur Conan Doyle

Socialism is a dangerous delusion.

The working classes need guidance, not revolution.

I have no doubt that there are other planets inhabited by intelligent beings.

The scientific establishment is too conservative.

My spiritual experiences are as real as my physical ones.

The greatest crime is to ignore the evidence of the senses.

I have seen things that would make your hair stand on end.

The world is full of wonders, if only we open our eyes.

The human mind is capable of anything.

We are all connected, in ways we do not understand.

Love is the greatest power in the universe.

The past is never truly dead; it lives on in the present.

Every man has his own secret sorrows, which the world knows not.

Life is a great chain, and we are all links in it.

The truth is often stranger than fiction.

Data! Data! Data! I can't make bricks without clay.

It is a capital mistake to theorize before one has data.

Elementary, my dear Watson.

The world is big enough for us all.

Man is an ape, and woman is a cat.