“I think that you could have used your vast intellect far more usefully by serving mankind instead of stealing it. -Mycroft"Where's the fun in that? Goodness is weakness, pleasantness is poisonous, serenity is mediocrity and kindness is for losers. The best reason for committing Loathsome and detestable acts - and let's face it, I am considered something of an expert in this field - is purely for their own sake. Monetary gain is all very well, but it dilutes the taste of wickedness to a lower level that is obtainable by almost anyone with an overdeveloped sense of avarice. True and baseless evil is as rare as the purest good." -Acheron”

“Goodness is weakness, pleasantness is poisonous, serenity is mediocrity and kindness is for losers. The best reason for committing loathsome and detestable acts – and let’s face it, I am considered something of an expert in this field – is purely for their own sake. Monetary gain is all very well, but it dilutes the taste of wickedness to a lower level that is obtainable by almost anyone with an overdeveloped sense of avarice. True and baseless evil is as rare as the purest good –”

“True and baseless evil is as rare as the purest good--and we all know how rare that is...”

“Growth purely for its own sake is the philosophy of cancer.”

“Do you really think you'd win a PR war against a bunch of committed librarians?' He thought about this, but he knew I was right. The libraries were a treasured institution and so central to everyday life that government and commerce rarely did anything that might upset them.Some say they were more powerful than the military, or, if not, they were certainly quieter. As they say: Don't mess with librarians.Only they use a stronger word than 'mess'...”

“Don't ever call me mad, Mycroft. I'm not mad. I'm just ... well, differently moraled, that's all.”

“Try to be pleasant to one another, get plenty of fresh air, read a good book now and then, depose your government when it suspends the free press, try to use the mechanism of the state to adjudicate fairly and employ diplomatic means wherever possible to avoid armed conflict.”