The deepest definition of youth is life as yet untouched by tragedy.

"
Whitehead's political views sometimes appear to be libertarian without the label. He believed that "there are no whole truths; all truths are half-truths. 1925a.

Alfred North Whitehead OM FRS (15 February 1861 – 30 December 1947) was an English-American mathematician and philosopher. He co-authored the epochal Principia Mathematica with Russell and later wrote the metaphysical treatise Process and Reality.