9 ideas
| 12172 | Objects of amusement do not have to be real [Scruton] |
| 12169 | Since only men laugh, it seems to be an attribute of reason [Scruton] |
| 12170 | Amusement rests on superiority, or relief, or incongruity [Scruton] |
| 12173 | The central object of amusement is the human [Scruton] |
| 12712 | Substance is that which can act [Leibniz] |
| 12737 | Nature can be fully explained by final causes alone, or by efficient causes alone [Leibniz] |
| 12174 | Only rational beings are attentive without motive or concern [Scruton] |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |