Ruthless striving, overcomes everything.

Often have I wondered with much curiosity as to our coming into this world and what will follow our departure.

The end of doubt is the beginning of repose.

Who over-refines his argument brings himself to grief

And men go about to wonder at the heights of the mountains, and the mighty waves of the sea, and the wide sweep of rivers, and the circuit of the ocean, and the revolution of the stars, but themselves they consider not.

To begin with myself, then, the utterances of men concerning me will differ widely, since in passing judgment almost every one is influenced not so much by truth as by preference, and good and evil report alike know no bounds.

Great errors seldom originate but with men of great minds.