It is valid to conclude from...

It is valid to conclude from actuality to possibility, but not from possibility to actuality.

Translation

(French, German, Latin)

De l'existence d'une chose on conclut à sa possibilité ; de la possibilité d'une chose, on ne peut conclure à son existence.

Was existiert, muss auch möglich gewesen sein; was möglich ist, muss nicht immer zur Existenz gelangen.

Ab esse ad posse valet, a posse ad esse non valet consequential.

Quotes about thing:

Men are disturbed not by things, but by the view which they take of them.

Epictetus - Handbook (Enchiridion) /

He is fortunate who had been able to learn the causes of things.

Publius Vergilius Maro /

thing

There are certain things that we hide in order to reveal them.

Michel de Montaigne - Essays /

Conformity of the intellect to the things.

Thomas Aquinas /

The cost of a thing is the amount of what I will call life which is required to be exchanged for it, immediately or in the long run.

Henry David Thoreau - Walden; or, Life in the Woods /

Things do not change we change.

Henry David Thoreau - Walden; or, Life in the Woods /

All about thing...

Quotes about existence:

To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.

Henri Bergson - Creative Evolution /

The universe confounds me! I cannot imagine that such a ‘clock’ can exist without there being a Clockmaker.

Voltaire - Les cabales /

Existence precedes essence.

Jean-Paul Sartre - Existentialism and Humanism /

My happiness should justify existence itself!

Friedrich Wilhelm Nietzsche - Thus Spoke Zarathustra /

There are moments in life when time and space are more profound, and the awareness of existence immeasurably increased.

Charles Baudelaire /

Man is nothing else than his plan; he exists only to the extent that he fulfills himself; he is therefore nothing else than the ensemble of his acts, nothing less than his life.

Jean-Paul Sartre - Existentialism and Humanism /

All about existence...

also said...

We cannot direct the wind, but we can adjust the sails.

wind

We do not inherit the earth from our ancestors; we borrow it from our children.

You cannot hold the day back, but you can avoid wasting it.

Article IV – Liberty consists of doing anything which does not harm others: thus, the exercise of the natural rights of each man has only those borders which assure other members of the society the enjoyment of these same rights. These borders can be determined only by the law.

- Declaration of the Rights of Man and of the Citizen of 1789 /

Article I – Men are born and remain free and equal in rights. Social distinctions can be founded only on the common good.

- Declaration of the Rights of Man and of the Citizen of 1789 /

We build too many walls and not enough bridges.

More quotes...

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