Arthur Conan Doyle

Jealousy is a strange transformer of characters.

We can't command our love, but we can our actions.

For strange effects and extraordinary combinations we must go to life itself, which is always far more daring than any effort of the imagination.

It may be that you are not yourself luminous, but that you are a conductor of light. Some people without possessing genius have a remarkable power of stimulating it.

The most dangerous condition for a man or a nation is when his intellectual side is more developed than his spiritual. Is that not exactly the condition of the world today?

Several incidents in my life have convinced me of spiritual interposition – of the promptings of some beneficent force outside ourselves, which tries to help us where it can.

Heaven is to me as definite a world as Europe or the United States.

Spiritualism is the religion of the future, the answer to the modern world's curse of materialism.

How small we feel with our petty ambitions and strivings in the presence of the great elemental forces of Nature!

It is only when you touch the higher that you realize how low we may be among the possibilities of creation.

A dog reflects the family life. Whoever saw a frisky dog in a gloomy family, or a sad dog in a happy one? Snarling people have snarling dogs, dangerous people have dangerous ones.

Any truth is better than indefinite doubt.

What you do in this world is a matter of no consequence. The question is what can you make people believe you have done.

The love of books is among the choicest gifts of the gods.

Healthy scepticism is the basis of all accurate observation.

I never remember feeling tired by work, though idleness exhausts me completely.

A man always finds it hard to realize that he may have finally lost a woman's love, however badly he may have treated her.