"The greatest good is the knowledge of the union which the mind has with the whole of nature."

"The highest activity a human being can attain is learning for understanding, because to understand is to be free."

"The human mind has a knowledge of God, and knows that it is in God, and is conceived through God."

"No one can desire to preserve his being without desiring to enjoy life."

"Man, in so far as he is determined to act, is a part of nature, and is necessarily determined to do whatever he does."