Famous quotes containing the words optical and/or phase:
“There is an optical illusion about every person we meet.”
—Ralph Waldo Emerson (1803–1882)
“It no longer makes sense to speak of “feeding problems” or “sleep problems” or “negative behavior” is if they were distinct categories, but to speak of “problems of development” and to search for the meaning of feeding and sleep disturbances or behavior disorders in the developmental phase which has produced them.”
—Selma H. Fraiberg (20th century)
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