| Euclidian geometry is a building block for conceptualization. (PS 16) |
| The universal law of gravitation is an example of the laws of a natural mechanical system. (PS 20) |
| Human beings as examples of purposeful systems. (PS 31) |
| Examples of fallen socieites. (RF 3) |
| An example of a belief in the existence of certain things. (PS 82) |
| Planetary motion as an example of an interdisciplinary experience. (GST 118) |