Black is real sensation, even if it is produced by entire absence of light. The sensation of black is distinctly different from the lack of all sensations.
Interpretation
Black represents a unique sensory experience, separate from the absence of light, emphasizing the complexity of perception.
In this quote, Hermann Von Helmholtz explores the concept of black not merely as the absence of light but as a distinct sensation in itself. He suggests that our perception of colors and sensations is intricate and that even the perception of 'black', often associated with the absence of light, produces a unique sensory experience that cannot be equated with a complete lack of sensation.
In practice
In a discussion about the nature of perception in an art class.
The total quantity of all the forces capable of work in the whole universe remains eternal and unchanged throughout all their changes. All change in nature amounts to this, that force can change its form and locality, without its quantity being changed. The universe possesses, once for all, a store of force which is not altered by any change of phenomena, can neither be increased nor diminished, and which maintains any change which takes place on it.
Isolated facts and experiments have in themselves no value, however great their number may be. They only become valuable in a theoretical or practical point of view when they make us acquainted with the law of a series of uniformly recurring phenomena, or, it may be, only give a negative result showing an incompleteness in our knowledge of such a law, till then held to be perfect.
Whoever, in the pursuit of science, seeks after immediate practical utility, may generally rest assured that he will seek in vain.
Oaths are the fossils of piety.
The best that we can do is to be kindly and helpful toward our friends and fellow passengers who are clinging to the same speck of dirt while we are drifting side by side to our common doom.
Evolutionary naturalism takes the inherent limitations of science and turns them into a devastating philosophical weapon: because science is our only real way of knowing anything, what science cannot know cannot be real.
Most men seem to live according to sense rather than reason.
Why does no one confess his sins? Because he is yet in them. It is for a man who has awoke from sleep to tell his dreams.
The elemental fact, present in our consciousness every moment of our existence, is: I am life that wills to live, in the midst of life that wills to live.... The essence of the humane spirit is: Preserve life, promote life, help life to achieve its highest destiny. The essence of Evil is: Destroy life, harm life, hamper the development of life
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