A healthy attitude is contagious but don't wait to catch it from others. Be a carrier.
Tom Stoppard

Aggression unopposed becomes a contagious disease.
Jimmy Carter

Civilization is so hard on the body that some have called it a disease, despite the arts that keep puny bodies alive to a greater average age, and our greater protection from contagious and germ diseases.
G. Stanley Hall

Confidence is contagious. So is lack of confidence.
Vince Lombardi

Courage is contagious. When a brave man takes a stand, the spines of others are often stiffened.
Billy Graham

Cruelty is contagious in uncivilized communities.
Harriet Ann Jacobs

Elephants are contagious.
Paul Eluard

Enthusiasm is the best protection in any situation. Wholeheartedness is contagious. Give yourself, if you wish to get others.
David Seabury

Feast of the Holy Innocents The most thrilling thing you can ever do is win someone to Christ. And it's contagious. Once you do it, you don't want to stop.
Luis Palau

Freedom is contagious. That's why despots fear it so much.
Bill Owens

Freedom is the most contagious virus known to man.
Hubert H. Humphrey

From watching the news one would think the Iraqis want us out of their country. But an overwhelming majority of Iraqis support our involvement there. Our freedom is contagious and we helped liberate them.
Jim Bunning

It's your life. Live it with people who are alive. It tends to be contagious.
Peter McWilliams

Liberty, not communism, is the most contagious force in the world.
Earl Warren

Like timidity, bravery is also contagious.
Munshi Premchand

No company is preferable to bad. We are more apt to catch the vices of others than virtues, as disease is far more contagious than health.
Charles Caleb Colton

Nothing is so contagious as enthusiasm.
Samuel Taylor Coleridge

Nothing is so contagious as example; and we never do any great good or evil which does not produce its like.
Francois de La Rochefoucauld

Remember that happiness is as contagious as gloom. It should be the first duty of those who are happy to let others know of their gladness.
Maurice Maeterlinck

The African Union has to act in order to put an end to armed conflicts that undermine the continent, to fight against the devastation caused by AIDS and other contagious diseases, to promote sustainable development of its member states.
Omar Bongo