If the facts change, I’ll change my opinion. What do you do, Sir?
See {627632} for an earlier advocy of change when circumstances warrant and {636175} for a modern view.
The most basic inherent constraint is that neither time nor wisdom are free goods available in unlimited quantity. This means that in social processes, as in economic processes, it is not only impossible to attain perfection but irrational to seek perfection- or even to seek the best possible result in each separate instance.
The great advantage of being human is that we can employ rational thought and resolve to change our circumstances.
Sentiment never was and never can be a guarantee for justice.
A man has free choice to the extent that he is rational.
I approve designs not because I think I am more gifted or somebody who can see ahead three or four years from now, but just to make sure that the design is a logical, rational decision, taken after analyzing pros and cons.
I'm not emotional about investments. Investing is something where you have to be purely rational and not let emotion affect your decision making - just the facts.
I believe on the issue of immigration, you have to deal with it sensibly.
People are governed by the head; a kind heart is of little value in chess.
Military people do not get what they want by being emotional.
Thinking. A process by which I use my brain to make a rational decision.
I think I'm pragmatic.
Hope is not the basis for policy. Wise policymakers analyze major issues such as immigration carefully and look at facts and probabilities instead of just hoping for the best.
Who would think of buying or selling a private business because of someone's guess on the stock market? The availability of a quotation for your business interest (stock) should always be an asset to be utilized if desired. If it gets silly enough in either direction, you take advantage of it. Its availability should never be turned into a livability whereby its periodic aberrations in turn formulate your judgements.
Knowing where things are, and why, is essential to rational decision making
The individual investor should act consistently as an investor and not as a speculator. This means ... that he should be able to justify every purchase he makes and each price he pays by impersonal, objective reasoning that satisfies him that he is getting more than his money's worth for his purchase.
He knew when to compromise. Yet he never compromised his principles. He was a militant. Yet a militant who knew how to plan, assess concrete situations and emerge with rational solutions to problems.
The heart never takes the place of the head: but it can, and should, obey it.
People are trying to build a society where they can talk across the aisle so to speak, and have civil discourse. At the same time we're trying to inform ourselves about what's really true so that we can make evidence based decisions that is better than superstition or rumor. But the fact is that people who use evidence based decision making have much better life outcomes, greater life satisfaction, they live longer, they make better personal and medical decisions, better financial decisions. But parallel to that is you can't reason somebody out of a position they didn't reason themselves into.
A miscalculation is not negligence, nor prudence a crime. I am a scientist. I base my action or inaction upon probability and evidence. There is a reason we call science a discipline! Inferior minds bolt or build pyres to roast the witches in their midst!
[There can be no] rational administration of government when good men are held in the same esteem as bad ones.
Failure comes from ego, greed, envy, fear, imitation. I have success not because I am smart, but because I am rational.
I don't let myself get carried away by my own ideas - I abandon 19 out of 20 of them every day.
When at a loss about something, go and take counsel by yourself. For in the midst of shouting, the advantageous course is not to be seen, but as one reasons with oneself, it shines out clear.
I learned that most people buy based on emotion, not on a rational breakdown of the product or service.