It is often stated that of all the theories proposed in this century, the silliest is quantum theory. In fact, some say that the only thing that quantum theory has going for it is that it is unquestionably correct.
- Michio KakuIf the facts don`t fit the theory, change the facts.
- Albert EinsteinRelativity applies to physics, not ethics
- Albert EinsteinIt is the theory that decides what can be observed
- Albert EinsteinThere is a theory which states that if ever for any reason anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.
- Douglas AdamsHow empty is theory in the presence of fact
- Mark TwainHe who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.
- Leonardo Da VinciOur theories of the eternal are as valuable as are those which a chick which has not broken its way through its shell might form of the outside world.
- BuddhaAn ounce of action is worth a ton of theory.
- Friedrich EngelsThe theory seems to be that as long as a man is a failure he is one of God`s children, but that as soon as he succeeds he is taken over by the Devil.
- Henry Louis MenckenWhenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve
- Karl Popper