Perhaps we’ve never been visited by aliens because they have looked upon earth and decided there’s no sign of intelligent life.
Interpretation
Humanity may not appear intelligent enough to attract alien attention.
This quote by Neil Degrasse Tyson suggests that if extraterrestrial beings exist, they may have assessed Earth and determined that it does not display evidence of advanced intelligence. It prompts reflection on humanity's behavior and accomplishments, questioning whether our actions reflect true intelligence or if there is a lack thereof that could dissuade potential extraterrestrial visitors.
In practice
During a science seminar discussing the possibilities of extraterrestrial life.
The problem is that many people operate on the assumption that NASA should go to Congress every year with hat in hand and justify it every year. Well, I see it as the greatest economic driver that there ever was. Economic drivers don't need justification.
The press still thinks [global warming] is controversial. So they find the 1% of the scientists and put them up as if they're 50% of the research results. You in the public would have no idea that this is basically a done deal and that we're on to other problems, because the journalists are trying to give it a 50/50 story. It's not a 50/50 story. It's not. Period.
As a scientist, I want to go to Mars and back to asteroids and the Moon because I'm a scientist. But I can tell you, I'm not so naive a scientist to think that the nation might not have geopolitical reasons for going into space.
In just one year, the expenditure of of the U.S.'s military budget is equivalent to the entire 50-year running budget of NASA combined.
One of my great laments is that education today seems to have... be less about passion and more about process, more about tactic or technique.
Lots of people think, well, we're humans; we're the most intelligent and accomplished species; we're in charge. Bacteria may have a different outlook: more bacteria live and work in one linear centimeter of your lower colon than all the humans who have ever lived. That's what's going on in your digestive tract right now. Are we in charge, or are we simply hosts for bacteria? It all depends on your outlook.
We can only give away to others what we have inside ourselves.
A sombrero fell out of the sky and landed on the main street of town in front of the mayor, his cousin, and a person out of work. The day was scrubbed clean by the desert air. The sky was blue. It was the blue of human eyes, waiting for something to happen. There was no reason for a sombrero to fall out of the sky. No airplane or helicopter was passing overhead and it was not a religious holiday.
Protestants believe that the sacraments are like ladders that God gave to us by which we can climb up to Him. Catholics believe that they are like ladders that God gave to Himself by which He climbs down to us.
If Singapore is a nanny state, then I am proud to have fostered one.
All of the violence that doesn't occur doesn't get reported on the news.
Modesty and conscientiousness receive their reward only in novels. In life they are exploited and then shoved aside.
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