A simile is just a metaphor with the scaffolding still up.

I believe aphorisms are best when first read in the wild, free from the confines of any categories.

Sometimes, you need a door slammed in your face before you can hear opportunity knock.

London always reminds me of a brain. It is similarly convoluted and circuitous. A lot of cities, especially American ones like New York and Chicago, are laid out in straight lines. Like the circuits on computer chips, there are a lot of right angles in cities like this. But London is a glorious mess. It evolved from a score or so of distinct villages, that merged and meshed as their boundaries enlarged. As a result, London is a labyrinth, full of turnings and twistings just like a brain.

Heroism often results as a response to extreme events.

In the margin for error lies all our room for maneuver.

By bringing together what we know and what we don't know through analogy, metaphorical thinking strikes the spark that ignites discovery.