By the way, Doctor, I shall want your cooperation.' 'I shall be delighted.' 'You don't mind breaking the law?' 'Not in the least.' 'Nor running a chance of arrest?' 'Not in a good cause.' 'Oh, the cause is excellent!' 'Then I am your man.' 'I was sure that I might rely on you.

Now is the dramatic moment of fate, Watson, when you hear a step upon the stair which is walking into your life, and you know not whether for good or ill.

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

Desultory readers are seldom remarkable for the exactness of their learning.

Three quiet days. This hell fiend is like a cat with a mouse. She lets me loose only to pounce upon me again. I am never so frightened as when every thing is still.

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?

My mind rebels at stagnation, give me problems, give me work!