| There is none: 275 (18.4%) |  |
| Pursuing happiness: 185 (12.4%) | |
| Questing for knowledge: 124 (8.3%) | |
| Finding love: 122 (8.2%) | |
| Avoiding death: 121 (8.1%) | |
| A spiritual journey: 114 (7.6%) | |
| Bettering humanity: 114 (7.6%) | |
| Feeding and procreating: 100 (6.7%) | |
| Colonising the universe: 93 (6.2%) | |
| Seeking enlightenment: 75 (5.0%) | |
| Leaving a legacy: 58 (3.9%) | |
| Creating great works: 40 (2.7%) | |
| Survival of the fittest: 33 (2.2%) | |
| Stewardship of the planet: 30 (2.0%) | |
| Dominion over nature: 14 (0.9%) | |
