An amino acid residue (other than glycine) has no symmetry elements. The general operation of conversion of one residue of a single chain into a second residue equivalent to the first is accordingly a rotation about an axis accompanied by translation along the axis. Hence the only configurations for a chain compatible with our postulate of equivalence of the residues are helical configurations.
Linus PaulingI try to identify myself with the atoms ... I ask what I would do If I were a carbon atom or a sodium atom.
Linus PaulingLike thousands of other boys, I had a little chemical laboratory in our cellar and think that some of our friends thought me a bit crazy.
Linus Pauling..The truly fraudulent claims must be discarded. But novel methods of therapy should not be rejected because they are novel, or because they run counter to some generally accepted belief ("which may just be biased"), or because we do not understand the mechanism of the proposed treatment, or because it has come from an unconventional source.
Linus Pauling