Each child is biologically required to have a mother. Fatherhood is a well-regarded theory, but motherhood is a fact.
I don't think anybody's really been successful with theorizing about value or creating a price theory.
The incorrectness and weaknesses of a theory cause other minds to formulate the problems more exactly and in this way scientific progress is made.
I have a theory... that someplace at the heart of most compelling stories is something that doesn't make sense.
One of our theories is that one can offset this excessive compulsion toward the spectacular with a return to simplicity.
20% of management theories are responsible for 80% of results. That’s assuming the Pareto Principle makes the cut.
Theory is like a book. It's full of meaningless words, a few want to read it and where stays the movie.
A major fault, for example, is the fact that, along with the materialist principle, Darwin introduced into his theory of evolution reactionary Malthusian ideas.
Each pursues his own theory, little solicitous to correct or improve it by an attention to what is advanced by his opponents.
There are certain people who elicit a really passionate response. It's crazy. That's my Alexander Wang theory.
I wanted a theory that would allow one to live outside the office with the same philosophy one uses inside it.
I started out working on supersymmetry. The theory predicts that for every particle we know about, there will be an additional particle.
Einstein, in the special theory of relativity, proved that different observers, in different states of motion, see different realities.
Theories come and go, but fundamental data always remain the same.
No ideology or psychological theory can possibly do justice to the full range of human experience.
There is no body of theory or significant body of relevant information, beyond the comprehension of the layman, which makes policy immune from criticism.
I can't negate the theory that the Huxtables on 'The Cosby Show' may have helped pave the way for the Obama family. People enjoyed watching that black family.
My theory is, if you can do comedy and you can be in a scene with someone like Brad Garrett and hold your own, you've really got a future in this business.
We do have business relationships; we do licensing relationships, and people want to use Google services on top of Android. But in theory, you can use Android without Google.
My theory of change is that there are already millions of people working day in and day out on the ground to deliver on promises on global change. We need to strengthen those institutions and help those people in the field.
My object will be, first, to show by what connections the history of the fossil bones of land animals is linked to the theory of the earth and why they have a particular importance in this respect.
