The most dangerous heresy of our time, it bears repeating, is the belief that belief in itself is a good thing, regardless of its content; for faith that is attached to an unworthy or inadequate object makes people less than they are, not more.

Sydney J. Harris (1917-1986) Anglo-American columnist, journalist, author
“Strictly Personal” column (8 Apr 1955)
    (Source)

Reprinted in Leaving the Surface (1968).