``Change is scientific, progress is ethical; change is indubitable, whereas progress is a matter of controversy.''
Bertrand Russell (1872-1970)
``It seems to me that the mine is already almost too deep, and unless we discover new seams we shall sooner or later have to abandon it. ... It is not impossible that the mathematical positions in the Academies will one day become what the University chairs in Arabic are now."
J. L. Lagrange (1736-1813)
``Progress is measured funeral by funeral"