Here are the Physics Quotes of the Day for last week. All these quotes are now also on Wikiquote.
Feb 14 "As we can not give a general definition of energy, the principle of the conservation of energy signifies simply that there is something which remains constant." Henri Poincaré
Feb 13 "In general, scientific progress calls for no more than the absorption and elaboration of new ideas— and this is a call most scientists are happy to heed." Werner Heisenberg
Feb 12 "I love fools' experiments. I am always making them." Charles Darwin
Feb 11 "One of the principal objects of research in my department of knowledge is to find the point of view from which the subject appears in the greatest simplicity." J.Willard Gibbs born on Feb 11 1839.
Feb 10 "...elementary particles are terribly boring, which is one reason why we're so interested in them." Steven Weinberg
Feb 9 "When you make the finding yourself — even if you're the last person on Earth to see the light — you never forget it." Carl Sagan
Feb 8 "Why did such serious people take so seriously axioms which now seem so arbitrary?" John S. Bell