Formerly, I thougth that philosophy was just philosophy. Now I know today´s philosophy will be tomorrow´s science.

Antes pensaba que la filosofía era solo filosofía. Ahora se que la filosofía de hoy será la ciencia de mañana.

Cheng Man Ching
Cheng Tzu's Thirteen Treatises on T'ai Chi Ch'uan
Teatrise Two: Understanding the Occult and The Physical. pg.26
( Mr. Ts'ao a Cheng Manching )