Nature gropes and blunders and performs the crudest acts. There is no steady advance upward. There is no design.
Oliver SacksI think hallucinations need to be discussed. There are all sorts of hallucinations, and then many sorts which are okay, like the ones I think which most of us have in bed at night before we fall asleep, when we can see all sorts of patterns or faces and scenes.
Oliver Sacksthere are other senses -ยญ secret senses, sixth senses, if you will -ยญ equally vital, but unrecognized, and unlauded.
Oliver SacksIt seems that the brain always has to be active, and if the auditory parts of the brain are not getting sufficient input, then they may start to create hallucinatory sounds on their own. Although it is curious that they do not usually create noises or voices; they create music.
Oliver SacksThere is certainly a universal and unconscious propensity to impose a rhythm even when one hears a series of identical sounds at constant intervals... We tend to hear the sound of a digital clock, for example, as "tick-tock, tick-tock" - even though it is actually "tick tick, tick tick.
Oliver Sacks