Certainty Quote by Lisa Randall

Most areas of intellectual life have discovered the virtues of speculation, and have embraced them wildly. In academia, speculation is usually dignified as theory.

— Michael Crichton

The end of knowledge is power ... the scope of all speculation is the performing of some action or thing to be done.

— Thomas Hobbes

From the dawn of exact knowledge to the present day, observation, experiment, and speculation have gone hand in hand; and, whenever science has halted…

— Anonymous

I think that only daring speculation can lead us further and not accumulation of facts.

— Albert Einstein

The opposite of speculation is to be present to the world simply as it is.

— Jeff Kober

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

Not until the empirical resources are exhausted, need we pass on to the dreamy realms of speculation.

— Edwin Powell Hubble

Fundamental progress has to do with the reinterpretation of basic ideas.

— Alfred North Whitehead

A number of current theoretical explorations will turn out to be passing fancies...

— Abraham Pais

This desire of knowledge and the wonder which it hopes to satisfy are the driving power behind all the changes that we, with careless,…

— Nicholas Murray Butler

Having established that good ideas do indeed come in from the cold, start on the fringes and become mainstream, can we make any predictions…

— Nigel Farage

We have merely scratched the surface of the store of knowledge which will come to us. I believe that we are now, a-tremble on…

— Thomas A. Edison