Quote by Spinoza, Baruch
"Effort is the very essence of power."
More from Spinoza, Baruch
"He who has a true love of God must rejoice that God rejoices in himself."
"Fear cannot be without hope nor hope without fear."
"The human body is composed of a great number of parts of diverse nature, each of which requires continual varied replenishment."
"I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind."