You have probably never heard of Professor Moriarty? said he.

The Professor snorted like an angry buffalo. "You really touch the limit," said he. "You enlarge my view of the possible. Cerebral paresis! Mental inertia! Wonderful!"

The charlatan is always the pioneer... The quack of yesterday is the professor of tomorrow.

From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.

Skill is fine, and genius is splendid, but the right contacts are more valuable than either.

I never make exceptions. An exception disproves the rule.