12 ideas
| 12268 | Contradiction is impossible [Antisthenes (I), by Aristotle] |
| 602 | Some fools think you cannot define anything, but only say what it is like [Antisthenes (I), by Aristotle] |
| 6021 | It is only when we say a proposition that we speak truly or falsely [Sext.Empiricus] |
| 19043 | Bivalence applies not just to sentences, but that general terms are true or false of each object [Quine] |
| 6020 | 'Man is a rational mortal animal' is equivalent to 'if something is a man, that thing is a rational mortal animal' [Sext.Empiricus] |
| 19042 | Terms learned by ostension tend to be vague, because that must be quick and unrefined [Quine] |
| 6026 | How can you investigate without some preconception of your object? [Sext.Empiricus] |
| 1664 | I would rather go mad than experience pleasure [Antisthenes (I)] |
| 6032 | Right actions, once done, are those with a reasonable justification [Sext.Empiricus] |
| 21385 | Antisthenes said virtue is teachable and permanent, is life's goal, and is like universal wealth [Antisthenes (I), by Long] |
| 1517 | The tektraktys (1+2+3+4=10) is the 'fount of ever-flowing nature' [Sext.Empiricus] |
| 2631 | Antisthenes says there is only one god, which is nature [Antisthenes (I), by Cicero] |