Abundance of knowledge does not teach men to be wise.

Everything changes but change itself. Everything flows and nothing remains the same... You cannot step twice into the same river, for other waters and yet others go flowing ever on.

Unless you expect the unexpected you will never find it, for it is hard to discover and hard to attain.

If one does not expect the unexpected, one will not find it out, since it is not to be searched out, and difficut to compass.

The Sibyl, with frenzied mouth uttering things not to be laughed at, unadorned and unperfumed, yet reaches to a thousand years with her voice by aid of the god.

Thinking is a sacred disease and sight is deceptive.

Everything flows and nothing abides. Everything gives way and nothing stays fixed.