Certain Quotes
You cannot carry out fundamental change without a certain amount of madness.
Thomas Sankara (1988). “Thomas Sankara speaks: the Burkina Faso revolution, 1983-87”, Pathfinder Pr
If you thought that science was certain - well, that is just an error on your part.
Richard P. Feynman (2015). “The Quotable Feynman”, p.349, Princeton University Press
The best lack all conviction, while the worst are full of passionate intensity.
"The Second Coming" l. 1 (1921)
Salvador Minuchin, Michael D. Reiter, Charmaine Borda (2013). “The Craft of Family Therapy: Challenging Certainties”, p.4, Routledge
Thomas Henry Huxley, Henrietta A. Huxley (1908). “Aphorisms and reflections”