It is undesirable to believe a proposition when there is no ground whatever for supposing it true
Interpretation
Believing something without evidence is not a rational position.
This quote from Bertrand Russell emphasizes the importance of evidence in forming beliefs. To accept a proposition as true without any supportive grounds is seen as intellectually irresponsible, suggesting that critical thinking and skepticism are essential in the pursuit of knowledge and understanding.
In practice
In a debate about climate change, one might use this quote to emphasize the need for scientific evidence.
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.
For outward show is a wonderful perverter of the reason.
What we make testifies who we are. People can sense care and can sense carelessness. This relates to respect for each other and carelessness is personally offensive.
Every individual of the community at large has an equal right to the protection of government.
Without the restraints of religion and social worship, men become savages much sooner than savages become civilized by means of religion and civil government.
There would be no great men if there were no little ones.
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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