External Structures

Large scale structure can't be imposed from the outside.  This is why you don't see gigantic crabs or spiders the size of horses.  What's true for organisms is also true for organizations.

Vaccines and Traditional Morality

I see a real parallel between the anti-vaccine movement and Western Civilization's departure from its historic/traditional morality over the past 100+ years.  Sometimes the formulation or application of traditional morality has produced harmful results (e.g. prideful and condescending - even hateful - attitudes to those whose actions fall outside the bounds of "approved" moral conduct) - like mercury-based vaccinations.  But rather than striving to find the appropriate expression of morality (i.e. non-mercury based vaccination formulas), a significant portion of society has decided to abandon traditional morality, with disastrous results.

Architecture and Masonry

We spend so much time working on our plans - worrying whether/working to make sure things will go as we desire - that we often forget to focus on, and enjoy, the labor of executing the plans and serendipity of those things that don't go as planned.