On love, not harming others, and respecting all beings. Even animals have these elements in their behavioral patterns. We should start by observing how animals act. They are honest and appreciate it when we are honest with them. If you present something nice to an animal in one hand while hiding a rope in the other, the creature will know your intention. Yet animals have no religion, no constitution. Basic nature has endowed them with the faculty of discernment. It is the same for humans.
Since an intelligence common to us all makes things known to us and formulates them in our minds, honorable actions are ascribed by us to virtue, and dishonorable actions to vice; and only a madman would conclude that these judgments are matters of opinion, and not fixed by nature.
The first law for the historian is that he shall never dare utter an untruth. The second is that he shall suppress nothing that is true. Moreover, there shall be no suspicion of partiality in his writing, or of malice.
Probability but no truth, facility but no freedom--it is owing to these two fruits that the tree of knowledge cannot be confused with the tree of life.