blue

N.N. Taleb
Antifragile
(2012)

you need a name for the color blue when you build a narrative, but not in action—the thinker lacking a word for "blue" is handicapped; not the doer. (I've had a hard time conveying to intellectuals the intellectual superiority of practice.)

(108-109)

Richard Sennett
The Craftsman
(2008)

[92] ...one of the eighteenth century's ethical touchstones, the power of sympathy. As our forebears understood sympathy, it did not quite conform to the biblical moral injunction to "treat thy neighbor as thyself." As Adam Smith observed in The Theory of Moral Sentiments: "As we can have no immediate experience of what other men feel, we can form no idea of the manner in which they are affected by conceiving what we ourselves should feel in a like situation." Entering into others' lives requires therefore an act of imagination. David Hume made the same point in his Treatise of Human Nature:...