Waves and ripples

Ripples are the instant effect of wind on water and they die down as quickly as they form, as the surface tension of the water dampens their efforts. If a wind blows steadily across a large enough patch of water for a few hours then the ripples become waves and these will not be dampened [...]

Dr Jekyll and Mr Hyde

I learned to recognise the thorough and primitive duality of man; I saw that, of the two natures that contended in the field of my consciousness, even if I could rightly be said to be either, it was only because I was radically both.  (...) With every day, and from both sides of my intelligence, [...]

The theory of the tides

We at the height are ready to decline.There is a tide in the affairs of menWhich, taken at the flood, leads on to fortune;Omitted, all the voyage of their lifeIs bound in shallows and in miseries.On such a full sea are we now afloat,And we must take the current when it serves,Or lose our ventures.William [...]