It is theory that decides what can be observed. – Albert Einstein
Sometimes one pays most for the things one gets for nothing. – Albert Einstein

It is theory that decides what can be observed. – Albert Einstein
Sometimes one pays most for the things one gets for nothing. – Albert Einstein
Mathematics are well and good but nature keeps dragging us around by the nose. – Albert Einstein
Since our inner experiences consist of reproductions and combinations of sensory impressions, the concept of a soul without a body seems to me to be empty and devoid of meaning. – Albert Einstein
The world can doubtless never be well known by theory: practice is absolutely necessary; but surely it is of great use to a young man, before he sets out for that country, full of mazes, windings, and turnings, to have at least a general map of it, made by some experienced traveler. – Lord Chesterfield