Absence of evidence is not evidence of absence.

- Carl Sagan

The heart may think it knows better: the senses know that absence blots people out. We really have no absent friends.

- Elizabeth Bowen

Program testing can be used to show the presence of bugs, but never to show their absence!

- Edsger Dijkstra

The longest absence is less perilous to love than the terrible trials of incessant proximity.

- Edna St. Vincent Millay

You'll find boredom where there is the absence of a good idea.

- Earl Nightingale

No-tech tourism is a form of temporal eco-tourism in which one reads books or watches film and TV precisely because of the absence of 21st-century technologies.

- Douglas Coupland

Confront a corpse at least once. The absolute absence of life is the most disturbing and challenging confrontation you will ever have.

- David Bowie

Judicious absence is a weapon.

- Charles Reade

The surest test of discipline is its absence.

- Clara Barton

So far as discipline is concerned, freedom means not its absence but the use of higher and more rational forms as contrasted with those that are lower or less rational.

- Charles Horton Cooley

Absence blots people out. We really have no absent friends.

- Ambrose Bierce

Belief in the absence of illusions is itself an illusion.

- Barbara Grizzuti Harrison

If Bill Finger created Batman, where is Bill Finger's byline on my strip? It is conspicuous by its absence.

- Bob Kane

I was court-martialled in my absence, and sentenced to death in my absence, so I said they could shoot me in my absence.

- Brendan Behan

When I came back to Dublin I was courtmartialed in my absence and sentenced to death in my absence, so I said they could shoot me in my absence.

- Brendan Behan

True net-heads sometimes resort to punctuation cartoons to get around the absence of inflection.

- Barton Gellman

I am truly horrified by modern man. Such absence of feeling, such narrowness of outlook, such lack of passion and information, such feebleness of thought.

- Alexander Herzen

In the absence of any short term in common use to represent all desirable things, or things that satisfy human wants, we may use the term Goods for that purpose.

- Alfred Marshall

I know that part of the reason I read Tolkien when I'm ill is that there is an almost total absence of sexuality in his world, which is restful.

- A. S. Byatt

Success is not the absence of failure; it's the persistence through failure.

- Aisha Tyler