| With every passing phase, life becomes more complex in the sense that it allows man to either stumble upon or to consciously discover new phenomena and substance. |
| If the key is to not actively search for something, then why don't more common people stumble upon such experiences of happenstance? |
| Others find the process to be one of trial and error, until they stumble upon one that fits. |
| If you slip away from the main tourist scene, you'll likely stumble upon a bakery offering freshly baked brown loaves from 200-year-old recipes. |
| Soon, they stumble upon a baby who is being hunted by sabertooths, and the two decide to return it to its owner. |
| A potential initiate is hardly going to stumble upon a support group this small. |
