Depth vs. Surface Tension.
Focused Understanding vs. Superficial Knowledge
Needs vs. Wants
Rewards vs. Obligations

Deep vs. Superficial
Trying vs. Being Forced
Calling vs. Showing Off
Trouble vs. Tragedy

Dark vs. Light
Solutions vs. Confusion
Certainty vs. Ambiguity
Interesting vs. Entertaining

Colder vs. Warmer
Experimentation vs. Repetition
Philosophy vs. Facts
Science vs. Fiction

Humid vs. Dry
Humility vs. Ego
Control vs. Lashing
Transcending vs. Forgettable

Unknown vs. Familiar
Sparking vs. Unimaginative
Constant vs. Frail
Executor vs. Executed