The Imitation of Christ (Dover Thrift Editions: Religion)

by Thomas à Kempis

To think of oneself as nothing, and always to think well and highly of others is the best and most perfect wisdom. Wherefore, if you see another sin openly or commit a serious crime, do not consider yourself better, for you do not know how long you can remain good. All men are frail, but you must admit that none is more frail than yourself.