I shall not restrict Sri Aurobindo's greatness to this age only. We have Plato, Spinoza, Kant and Hegel; but they do not have the same all-embracing metaphysical structure, they do not have the same vision.
Dr. Frederic Spiegelberg
Sri Aurobindo's treatises are among the most important works of our time in philosophy, ethics and humanities.
Pitirim A. Sorokin
Research Center Director, Harvard University