A Quote by Peter Drucker

The most probable assumption is that no currently working 'business theory' will be valid 10 years hence. — © Peter Drucker
The most probable assumption is that no currently working 'business theory' will be valid 10 years hence.
The very power of [textbook writers] depends on the fact that they are dealing with a boy: a boy who thinks he is ‘doing’ his ‘English prep’ and has no notion that ethics, theology, and politics are all at stake. It is not a theory they put into his mind, but an assumption, which ten years hence, its origin forgotten and its presence unconscious, will condition him to take one side in a controversy which he has never recognized as a controversy at all.
I do not like to talk about the future. I don't like to be one of those people. It's so easy to have a very vague idea and say, oh, computers will be 3D-ish and then 10 years later I'll say I predicted it 10 years ahead. I don't think that's honest and I don't think that's valid and worth anything.
When I first entered this business, I said, 'Well, this will be good to stay in for 10 years or so; then I'll start a family.' Then 10 years came, and I thought, 'I'm just hitting my stride. There's no way I'm leaving.'
Assumption Theory: The only safe assumption in life is that the person who assures you that everything is all right is all wrong.
To me this is the most beautiful, the most satisfactory from a scientific standpoint, the most logical theory of life. For thirty years I have leaned toward the theory of Reincarnation. It seems a most reasonable philosophy and explains many things.
When you've been in the business 5-years, as a person, it's like you're 5-years old - like a child. 10-years and you're 10-years old, 20... Etcetera. That's how I measure maturity in this industry.
From the scientific view, the theory of karma may be a metaphysical assumption -- but it is no more so than the assumption that all of life is material and originated out of pure chance
Creationists reject Darwin's theory of evolution on the grounds that it is "just a theory". This is a valid criticism: evolution is indeed merely "a theory", albeit one with ten billion times more credence than the theory of creationism - although, to be fair, the theory of creationism is more than just a theory. It's also a fairy story. And children love fairy stories, which is presumably why so many creationists are keen to have their whimsical gibberish taught in schools.
I'm 25 years old; I've had a good career, and the best is yet to come. I want to fight for the next 10 years, which will be better than my first 10 years.
But the proclamation, as law, either is valid, or is not valid. If it is not valid, it needs no retraction. If it is valid, it can not be retracted, any more than the dead can be brought to life.
Hopefully folks will look at the good things that I've done over the years, you know, my 10 years in Congress, my 12 years in state legislature, my many years of community organizing for the environment, for police accountability, for criminal justice reform, economic empowerment, trying to fight for small-business people, all these things.
The reality is if you were going to die tomorrow, and someone offered you another 10 years, most people would take those 10 years.
The theory of the IRS is rather repugnant to me because the assumption is made that I, the government, owns 100% of your income and I permit you to keep 5%, 10% or 20%. You're vulnerable, you've sold out. The government can take 80% if they want, which they did at one time.
Currently, I'm working with a company called DRL Promotions with my partners Dan Wise and Luis De Cubas. We're currently representing over 30 fighters.
I'm 58 years old. I got married for the first time - it's about time, right? Growing up as a gay woman, you just don't ever think about that, and then I thought, about 10 years ago, 'You know, I think within 10 years gay marriage will be legal.' And here we are, 10 years later, making it legal.
[Attributing the origin of life to spontaneous generation.] However improbable we regard this event, it will almost certainly happen at least once.... The time... is of the order of two billion years.... Given so much time, the "impossible" becomes possible, the possible probable, and the probable virtually certain. One only has to wait: time itself performs the miracles.
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