Progress is possible only if we train ourselves to think about programs without thinking of them as pieces of executable code.
Edsger DijkstraRead
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
Interpretation
Abstraction aims to clarify concepts by allowing for precise expression without ambiguity.
In this quote, Edsger Dijkstra emphasizes that the intention behind abstraction is not to obscure meaning, but rather to elevate understanding to a clearer and more precise level. Abstraction serves as a powerful tool in various fields, especially in computer science and mathematics, where it enables individuals to simplify complex ideas while maintaining accuracy in communication and thought.
In practice
In a lecture about programming paradigms, one might use this quote to highlight the importance of abstraction in software development.
Progress is possible only if we train ourselves to think about programs without thinking of them as pieces of executable code.
Simplicity is prerequisite for reliability.
We shall do a much better programming job, provided that we approach the task with a full appreciation of its tremendous difficulty, provided that we stick to modest and elegant programming languages, provided that we respect the intrinsic limitations of the human mind and approach the task as Very Humble Programmers.
The tools we use have a profound and devious influence on our thinking habits, and therefore on our thinking abilities.
LISP has jokingly been described as "the most intelligent way to misuse a computer." I think that description is a great compliment because it transmits the full flavour of liberation: it has assisted a number of our most gifted fellow humans in thinking previously impossible thoughts.
A most important, but also most elusive, aspect of any tool is its influence on the habits of those who train themselves in its use. If the tool is a programming language this influence is, whether we like it or not, an influence on our thinking habits.... A programming language is a tool that has profound influence on our thinking habits.
Man is made or unmade by himself. In the armory of thought he forges the weapons by which he destroys himself. He also fashions the tools with which he builds for himself heavenly mansions of joy and strength and peace.
We are built to live in the kingdom of God. It is our natural habitat.
The universe (he said) offers a paradox too great for the finite mind to grasp. As the living brain cannot conceive of a nonliving brain β although it may think it can β the finite mind cannot grasp the infinite.
Metaphysics abstracts the mind from the senses, and the poetic faculty must submerge the whole mind in the senses. Metaphysics soars up to universals, and the poetic faculty must plunge deep into particulars.
I don't understand why I'm not dead. When your heart breaks, you should die
In Chinese, the word for heart and mind is the same -- Hsin. For when the heart is open and the mind is clear they are of one substance, of one essence.
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