Faith may be defined briefly as an illogical belief in the occurrence of the improbable.
— H. L. Mencken

A shocking occurrence ceases to be shocking when it occurs daily.
Alexander Chase occurrence quote

To what fortuitous occurrence do we not owe every pleasure and convenience of our lives.
— Oliver Goldsmith

An accident is an inevitable occurrence due to the actions of immutable natural laws.
— Ambrose Bierce

The continuance and frequent fits of anger produce in the soul a propensity to be angry; which oftentimes ends in choler, bitterness, and moronity, when the mid becomes ulcerated, peevish, and querulous, and is wounded by the least occurrence.
— occurrence quotation by Henry Ward Beecher