The highest activity a human being can attain is learning for understanding, because to understand is to be free.
Baruch SpinozaOf all the things that are beyond my power, I value nothing more highly than to be allowed the honor of entering into bonds of friendship with people who sincerely love truth. For, of things beyond our power, I believe there is nothing in the world which we can love with tranquility except such men.
Baruch SpinozaThe greatest pride, or the greatest despondency, is the greatest ignorance of one's self.
Baruch Spinoza