Even Johannes Kepler, Isaac Newton, Charles Darwin, Gregor Mendel, and Albert Einstein made serious mistakes. But the scientific enterprise arranges things so that teamwork prevails: What one of us, even the most brilliant among us, misses, another of us, even someone much less celebrated and capable, may detect and rectify.
Listen widely to remove your doubts and be careful when speaking about the rest and your mistakes will be few. See much and get rid of what is dangerous and be careful in acting on the rest and your causes for regret will be few. Speaking without fault, acting without causing regret: 'upgrading' consists in this.
Civil society people - these are the people - civil society groups are the people who need to monitor the aid to ensure that the aid is directed to what it is supposed to. And in order for them to do so, they need to have the space, they need to have the freedom, and they need to have the right to demonstrate, and to petition their government. They can't do that in Ethiopia; they can't do that in Eritrea; and so this is why I was cautioning that we may be repeating some of our old mistakes.
[About his marijuana use] I did. It's not something that I'm proud of. It was a mistake as a young man, but you know? I mean not going to -- I never understood that line. The point was to inhale. That was the point.
We have fools in all sects, and impostors in most; why should I believe mysteries no one can understand, because written by men who chose to mistake madness for inspiration and style themselves Evangelicals?
We are really doing our very best. There are no doubt many mistakes and shortcomings. A lot of things are done none too well. Some things that ought to be done have not yet been done...[But Britain's effort has] justly commanded the wonder and admiration of every friendly nation in the world.
Learn from every mistake because every experience, encounter, and particularly your mistakes are there to teach you and force you into being more who you are.
It has always seemed to me that so long as you produce your dramatic effect, accuracy of detail matters little. I have never striven for it and I have made some bad mistakes in consequence. What matter if I hold my readers?
Arguments from authority carry little weight – authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
If, in the course of a thousand or two thousand years, science arrives at the necessity of renewing its points of view, that will not mean that science is a liar. Science cannot lie, for it's always striving, according to the momentary state of knowledge, to deduce what is true. When it makes a mistake, it does so in good faith. It's Christianity that's the liar. It's in perpetual conflict with itself.
All this struggling and striving to make the world better is a great mistake. Not that it's wrong to try to improve the world if you know how but simply because struggling and striving are the worst possible ways to go about doing anything!