Source : Source: sturm-lie.be
“Except in pure mathematics, nothing is known for certain (although much is certainly false).”
Source : Paul Robeson, Philip Sheldon Foner (1978). “Paul Robeson speaks: writings, speeches, interviews, 1918-1974”, Brunner-Routledge
Li Ching-Yuen
Herbalist
S. Jay Olshansky
Researcher