"Whenever we see a funeral"

Via Anecdotal Evidence, Samuel Johnson in Rambler #78:

Since business and gaiety are always drawing our attention away from a future state, some admonition is frequently necessary to recall it to our minds, and what can more properly renew the impression than the examples of mortality which every day supplies? The great incentive to virtue is the reflection that we must die; it will therefore be useful to accustom ourselves, whenever we see a funeral, to consider how soon we may be added to the number of those whose probation is past, and whose happiness or misery shall endure for ever.