Everyone specializes in his own area of weakness. Russell's teapot: the philosophic burden of proof lies upon a person making empirically unfalsifiable claims, rather than shifting the burden of disproof to others. To assert, without offering proof, that a teapot, too small to be seen by telescopes, orbits the Sun somewhere in space between the Earth and Mars, we could not expect anyone to believe solely because the assertion could not be proven wrong. Sagan standard: Extraordinary claims require extraordinary evidence. Saint-Venant's principle states: "the difference between the effects of two different but statically equivalent loads becomes very small at sufficiently large distances from load." Named after Adhémar Jean Claude Barré de Saint-Venant. Sapir–Whorf hypothesis: the structure and scope of the language that people use influences people's worldview and cognition. Sarnoff's law: The value of a broadcast network is proportional to the number of viewers. Say's law, attributed to economist Jean-Baptiste Say by economist John Maynard Keynes: "supply creates its own demand", i.e., if businesses produce more output in a free market economy, the wages and other payment for productive inputs will provide sufficient demand so that there is no general glut. Sayre's law: "In any dispute the intensity of feeling is inversely proportional to the value of the stakes at issue." By way of corollary, the law adds: "That is why academic politics are so bitter." Often attributed to Henry Kissinger. Schneier's law: "Any person can invent a security system so clever that she or he can't think of how to break it." Schottky–Mott rule predicts the Schottky barrier height based on the vacuum work function of the metal relative to the vacuum electron affinity (or vacuum ionization energy) of the semiconductor. Named for Walter H. Schottky and Nevill Francis Mott. Segal's law: "A man with a watch knows what time it is. A man with two watches is never sure." Shermer's last law: "Any sufficiently advanced extraterrestrial intelligence is indistinguishable from God". This is a corollary to Clarke's third law. Shirky principle: "Institutions will try to preserve the problem to which they are the solution." Sievers's law, in Indo-European linguistics, accounts for the pronunciation of a consonant cluster with a glide (*w or *y) before a vowel as it was affected by the phonetics of the preceding syllable. Named after Germanic philologist Eduard Sievers (1859–1932). Sieverts's law, in physical metallurgy, is a rule to predict the solubility of