'Type one' error is thinking that something special is happening when nothing special really is happening. 'Type two' error is thinking that nothing special is happening, when in fact something rare or infrequent is happening. '
Inner freedom is an infrequent gift of nature and a worthy object for the individual.
A harmless hilarity and a buoyant cheerfulness are not infrequent concomitants of genius; and we are never more deceived than when we mistake gravity for greatness, solemnity for science, and pomposity for erudition.
Remarkable trait in the American Character is the union, not very infrequent, of Yankee cleverness with spiritualism.
It is odd, but on the infrequent occasions when I have been called upon in a formal place to play the bongo drums, the introducer never seems to find it necessary to mention that I also do theoretical physics.
To err is human; to forgive, infrequent.