Life Signs Quotes

How do you tell if something's alive? You check for breathing.

I wonder if, in fact, we have been observed by aliens and upon close examination of human conduct and human behavior they have concluded that there is no sign of intelligent life on Earth.

Some molecules - ammonia, carbon dioxide, water - show up everywhere in the universe, whether life is present or not. But others pop up especially in the presence of life itself. Among the biomarkers in Earth's atmosphere are ozone-destroying chlorofluorocarbons from aerosol sprays, vapor from mineral solvents, escaped coolants from refrigerators and air conditioners, and smog from the burning of fossil fuels. No other way to read that list: sure signs of the absence of intelligence.

A person who can break wind is not dead.

Old age likes indecency. It's a sign of life.

I do suspect we are going to get signs of life elsewhere, but how well prepared are we for this? Have we thought how we will approach them? We need to start thinking about that.

Some are born who never need them, Others still who never read them, signs.

Unrest of spirit is a mark of life.