Actually Think

The most important thing is to actually think about what you do.  To become aware and actually think about the effect of what you do on the environment and on society.  That's key, and that underlies everything else.      

-- Jane Goodall (3 April 1934-), English primatologist, as quoted in Going Blue: A Teen Guide to Saving Our Oceans, Lakes, Rivers, & Wetlands (2010) by Cathryn Berger Kaye and Philippe Cousteau, p. 14