This law (regarding the theoretical efficiency of heat…

The switch from 'steam engines' to 'heat engines' signals the transition from engineering practice to theoretical science.

— Hans Christian von Baeyer

Actually, I was more or less determined to be a theoretical physicist at the age of thirteen.

— David Gross

We commit not only theoretical error but also moral wrong in objectifying ourselves or other rational beings, ignoring their capacities for free action and…

— Allen W. Wood

I see anarchism as the theoretical ideal to which we are all gradually evolving to a point where everybody can tell the truth to…

— Robert Anton Wilson

We were convinced that the people need and require this faith. We have therefore undertaken the fight against the atheistic movement, and that not…

— Adolf Hitler

One of the goals of philosophy is wage theoretical battle. That is why we can say that every thesis is always, by its very…

— Louis Althusser

When you design a building, you start from a general philosophy, and you come down, and you start from detail and come up. Only…

— Renzo Piano

Humanism has many meanings, but what attracts me about it is that it encourages men and women to take a broad view of situations…

— Joseph Badaracco

So instead of talking about theoretical ways of ending the war and violence, I say that we have to get rid of the individual…

— Colin Quinn

The classes of problems which are respectively known and not known to have good algorithms are of great theoretical interest. [...] I conjecture that…

— Jack Edmonds

A theoretical system does not merely state facts which have been observed and that logically deducible relations to other facts which have also been…

— Talcott Parsons

The trouble is that when you read criticisms about the other films that I've made you get the impression that they're all about themes,…

— Michael Haneke

The fear of speculation, the ostensible rush from the theoretical to the practical, brings about the same shallowness in action that it does in…

— Friedrich Wilhelm Joseph Schelling

The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces…

— Erich Fromm

Close contact between science and the practice of collective farms and State farms creates inexhaustible opportunities for the development of theoretical knowledge, enabling us…

— Trofim Lysenko