“Radical skepticism is no more critical than is credulity.”

“The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one. The happiness of credulity is a cheap and dangerous quality of happiness, and by no means a necessity of life.”

“A wise skepticism is the first attribute of a good critic.”

“Academic library collections are designed to support critical thinking, skepticism about the known, and curiosity about the unknown.”

“Johnson is a radical skeptic, insisting, in the best Socratic tradition, that everything be put on the table for examination. By contrast, most skeptics opposed to him are selective skeptics, applying their skepticism to the things they dislike (notably religion) and refusing to apply their skepticism to the things they do like (notably Darwinism). On two occasions I’ve urged Michael Shermer, publisher of Skeptic Magazine, to put me on its editorial board as the resident skeptic of Darwinism. Though Shermer and I know each other and are quite friendly, he never got back to me about joining his editorial board.”

“PALATABLE CRITICISM: In a performance review, don't offer more than three criticisms. That's all an employee can digest.”