The mere understanding, however useful and indispensable, is the meanest faculty in the human mind and the most to be distrusted.
Interpretation
Understanding is important but can be misleading and requires cautious interpretation.
In this quote, Thomas De Quincey suggests that while understanding is a crucial element of human cognition, it can also be superficial and inadequate. He warns that over-reliance on mere understanding can lead to misinterpretations and errors, indicating that deeper insight and critical thinking are necessary for true wisdom.
In practice
In a discussion on education, you might use this quote to highlight the importance of critical thinking over rote learning.
But my way of writing is rather to think aloud, and follow my own humours, than much to consider who is listening to me; and, if I stop to consider what is proper to be said to this or that person, I shall soon come to doubt whether any part at all is proper.
Nobody will laugh long who deals much with opium: its pleasures even are of a grave and solemn complexion.
Surely everyone is aware of the divine pleasures which attend a wintry fireside; candles at four o'clock, warm hearthrugs, tea, a fair tea-maker, shutters closed, curtains flowing in ample draperies to the floor, whilst the wind and rain are raging audibly without.
I stood checked for a moment - awe, not fear, fell upon me - and whist I stood, a solemn wind began to blow, the most mournful that ever ear heard. Mournful! That is saying nothing. It was a wind that had swept the fields of mortality for a hundred centuries.
Thou hast the keys of Paradise, oh, just, subtle, and mighty opium!
Flowers that are so pathetic in their beauty, frail as the clouds, and in their coloring as gorgeous as the heavens, had through thousands of years been the heritage of children - honored as the jewelry of God.
There is no substitute for talent. Industry and all its virtues are of no avail.
In vain I have looked for a single man capable of seeing his own faults and bringing the charge home against himself.
By going to the movies, and because of other things, too, going to college, making a wide variety of friends, moving around traveling, I became a lot more open-minded than the heritage I was born into might have suggested.
But this wealth of information produced little or no insight.
Your peers will respect you for your integrity and character, not your possessions.
Impart as much as you can of your spiritual being to those who are on the road with you, and accept as something precious what comes back to you from them.
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