Often things realised in thought are more vivid than than the same things in inattentive physical experience. But the things apprehended as mental ar… - Alfred North Whitehead

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Often things realised in thought are more vivid than than the same things in inattentive physical experience. But the things apprehended as mental are always subject to the condition that we come to a stop when we come to explore ever higher grades of complexity in their realised relationships. We always find tat we have thought of just this — whatever it may be — and of no more.