Unfortunately, we haven't found many very old rocks on Earth because our planet's surface is constantly renewed by plate tectonics, coupled with erosion. Robert Duncan

The third lesson and tip actually comes from two of my favorite political philosophers: Mao Tse-tung and Mother Theresa - not often coupled with each other, but the two people I turn to most to basically deliver a simple point which is 'you're going to make choices; you're going to challenge; you're going to say why not; you're going to figure out how to do things that have never been done before. Anita Dunn

I often think I can see it in myself and in other young writers, this desperate desire to please coupled with a kind of hostility to the reader. David Foster Wallace

Evolution is a tightly coupled dance, with life and the material environment as partners. From the dance emerges the entity Gaia. James Lovelock

In England, the profession of the law is that which seems to hold out the strongest attraction to talent, from the circumstance, that in it ability, coupled with exertion, even though unaided by patronage, cannot fail of obtaining reward. Charles Babbage