For this reason poetry is something more philosophical and more worthy of serious attention than history.

There also appears to be another element in the soul, which, though irrational, yet in a manner participates in rational principle.

All communication must lead to change

The saying of Protagoras is like the views we have mentioned; he said that man is the measure of all things, meaning simply that that which seems to each man assuredly is. If this is so, it follows that the same thing both is and is not, and is bad and good, and that the contents of all other opposite statements are true, because often a particular thing appears beautiful to some and ugly to others, and that which appears to each man is the measure

Therefore, the good of man must be the end of the science of politics.

To Thales the primary question was not what do we know, but how do we know it.

The wise man knows of all things, as far as possible, although he has no knowledge of each of them in detail