Niccolò di Bernardo dei Machiavelli was a Florentine diplomat, author, philosopher, and historian who lived during the Italian Renaissance.

Jonathan David Haidt is an American social psychologist and author.

Stephen Richards Covey was an American educator, author, businessman, and speaker.

Kamer Daron Acemoğlu is a Turkish-American economist of Armenian descent who has taught at the Massachusetts Institute of Technology since 1993, where he is currently the Elizabeth and James Killian Professor of Economics, and was named an Institute Professor at MIT in 2019.

James Alan Robinson is a British-American economist and political scientist.

Thomas Piketty is a French economist who is a professor of economics at the School for Advanced Studies in the Social Sciences, associate chair at the Paris School of Economics (PSE) and Centennial Professor of Economics in the International Inequalities Institute at the London School of Economics (LSE)..