A priori Logical propositions are such as can be known a priori without study of the actual world.
Interpretation
A priori propositions are those that can be understood without empirical evidence or experience.
The quote by Bertrand Russell discusses the nature of a priori logical propositions, which are inherent truths or knowledge that can be known independently of experience in the physical world. This highlights a critical distinction in philosophy between what can be deduced through reason alone and what must be verified through observation and empirical study, emphasizing the value and limitations of different types of knowledge.
In practice
This quote can be used in a philosophy class discussion about the nature of knowledge.
St. Paul introduced an entirely novel view of marriage, that it existed primarily to prevent the sin of fornication. It is just as if one were to maintain that the sole reason for baking bread is to prevent people from stealing cake.
Freedom comes only to those who no longer ask of life that it shall yield them any of those personal goods that are subject to the mutations of time.
Of these austerer virtues the love of truth is the chief, and in mathematics, more than elsewhere, the love of truth may find encouragement for waning faith. Every great study is not only an end in itself, but also a means of creating and sustaining a lofty habit of mind; and this purpose should be kept always in view throughout the teaching and learning of mathematics.
At all times, except when a monarch could enforce his will, war has been facilitated by the fact that vigorous males, confident of victory, enjoyed it, while their females admired them for their prowess.
Moreover, the attitude that one ought to believe such and such a proposition, independently of the question whether there is evidence in its favor, is an attitude which produces hostility to evidence and causes us to close our minds to every fact that does not suit our prejudices.
Extreme hopes are born from extreme misery.
I always had a philosophy which I got from my father. He used to say, 'Listen. God gave to you the gift to play football. This is your gift from God. If you take care of your health, if you are in good shape all the time, with your gift from God no one will stop you, but you must be prepared.'
To turn water into wine, and what is common into what is holy, is indeed the glory of Christianity.
I could write a thesis on the physiology of vision. But I had no way to look through the fabric of confabulation spun by a man with severe lung disease who was prescribed 'home oxygen', but gave a false address out of embarrassment because he had no 'home.'
The choicest gift of God to man, the gift of reason; and having endeavoured to force upon himself the belief of a system against which reason revolts, he ungratefully calls it human reason; as if man could give reason to himself.
What is life without incompatible realities?
Looting is a natural response to the unnatural and inhuman society of commodity abundance. It instantly undermines the commodity as such, and it also exposes what the commodity ultimately implies: the army, the police and the other specialized detachments of the state's monopoly of armed violence.
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