God creates dinosaurs, God kills dinosaurs, God creates man, man kills God, man brings back dinosaurs.

You think you can destroy the planet? What intoxicating vanity. . . . . We've been residents here for the blink of an eye. If we're gone tomorrow, the earth will not miss us.

We think we know what we are doing. We have always thought so. We never seem to acknowledge that we have been wrong in the past, and so might be wrong in the future. Instead, each generation writes off earlier errors as the result of bad thinking by less able minds - and then confidently embarks on fresh errors of its own.

They didn't understand what they were doing. I'm afraid that will be on the tombstone of the human race.

A wonderful area for speculative academic work is the unknowable. These days religious subjects are in disfavor, but there are still plenty of good topics. The nature of consciousness, the workings of the brain, the origin of aggression, the origin of language, the origin of life on earth, SETI and life on other worlds...this is all great stuff. Wonderful stuff. You can argue it interminably. But it can't be contradicted, because nobody knows the answer to any of these topics.

Right now, scientists are in exactly the same position as Renaissance painters, commissioned to make the portrait the patron wants done, And if they are smart, they'll make sure their work subtly flatters the patron. Not overtly. Subtly.

Let's be clear: all professions look bad in the movies. And there's a good reason for this. Movies don't portray career paths, they conscript interesting lifestyles to serve a plot. So lawyers are all unscrupulous and doctors are all uncaring. Psychiatrists are all crazy, and politicians are all corrupt. All cops are psychopaths, and all businessmen are crooks. Even moviemakers come off badly: directors are megalomaniacs, actors are spoiled brats. Since all occupations are portrayed negatively, why expect scientists to be treated differently?