Friendship is the only thing in the world concerning the usefulness of which all mankind are agreed.
Marcus Tullius CiceroRead
Since an intelligence common to us all makes things known to us and formulates them in our minds, honorable actions are ascribed by us to virtue, and dishonorable actions to vice; and only a madman would conclude that these judgments are matters of opinion, and not fixed by nature.
Interpretation
Cicero argues that our moral judgments are not subjective opinions but are rooted in nature's laws.
In this quote, Cicero emphasizes that our understanding of right and wrong is shaped by a common intelligence shared among humanity. He asserts that moral distinctions—who we deem virtuous or vicious—are not mere subjective opinions but are grounded in the inherent nature of reality, suggesting that rejecting these shared moral truths is a sign of madness.
In practice
In a debate about ethics, one might reference this quote to underline the objective nature of morality.
Friendship is the only thing in the world concerning the usefulness of which all mankind are agreed.
Those wars are unjust which are undertaken without provocation. For only a war waged for revenge or defence can actually be just.
Orators are most vehement when their cause is weak.
Nothing contributes to the entertainment of the reader more, than the change of times and the vicissitudes of fortune.
No one has the right to be sorry for himself for a misfortune that strikes everyone.
Advice in old age is foolish; for what can be more absurd than to increase our provisions for the road the nearer we approach to our journey's end.
by making himself a priest made himself a demon.
When I became convinced that the universe is natural, that all the ghosts and gods are myths, there entered into my brain, into my soul, into every drop of my blood the sense, the feeling, the joy of freedom. The walls of my prison crumbled and fell. The dungeon was flooded with light and all the bolts and bars and manacles became dust.
If we had a keen vision of all that is ordinary in human life, it would be like hearing the grass grow or the squirrel's heart beat, and we should die of that roar which is the other side of silence.
Hollywood is a strange place if you're in trouble. Everybody thinks it's contagious.
A good parson once said that where mystery begins religion ends. Cannot I say, as truly at least, of human laws, that where mystery begins justice ends?
The belief that politics can be scientific must inevitably produce tyrannies. Politics cannot be a science, because in politics theory and practice cannot be separated, and the sciences depend upon their separation. Empirical politics must be kept in bounds by democratic institutions, which leave it up to the subjects of the experiment to say whether it shall be tried, and to stop it if they dislike it, because, in politics, there is a distinction, unknown to science, between Truth and Justice.
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