Sämtliche schriften und briefe series VI volume 4
Deutsche Akademie der Wissenschaften (ed)
Date: 1st half of 1677?
Translated from the Latin
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MIND, BODY AND SOUL
FREE WILL AND NECESSITY
POLITICS, LAW AND ETHICS
LEIBNIZ: ON THE OBLIGATION TO BELIEVE
[A VI 4, p2152]
It is not now in our power to remember or not remember any past thing.
Self-knowledge is not in our power.
Demonstration: For self-knowledge is memory by definition 5. Memory is not in our power, by the preceding observation, therefore self-knowledge is not in our power either.
It is not in our power to believe or not believe something.
Demonstration: For to believe is to be conscious of reasons which we find convincing about what is to be believed, by definition 2, and self-knowledge is not in our power, by proposition 1. Therefore neither is it in our power to believe or not believe.
There is no obligation to do those things which are not in our power.
[A VI 4, p2154]
Demonstration: Since fear of punishment is nothing other than the desire to avoid punishment, by definition 4, it follows that, to the person under an obligation, the only contribution punishment can make to the fulfilment of the obligation is the desire to avoid it, either by obedience or pledge. Therefore, since it is evident from this that the fear of punishment should only bring about the desire to obey, and indeed the obligation is a necessity which brings about the fear of punishment, by definition 1, it follows that there is no obligation except to the desire to obey; and hence to those things which even by the desire to obey, i.e. which - by definition 3 - are not in our power, there is no obligation.
There is no obligation to believe, but only to investigate with utmost application.
To believe is not in our power, by proposition 2. There is no obligation to do those things which are not in our power, by proposition 3. Therefore there is no obligation to believe. Which was to be demonstrated.
From this it follows that it is pointless to oblige someone by oath to believe or not believe something.
From this I infer that an obligation or commandment to believe occasions only the greatest effort to obey, i.e. the most meticulous investigation into reasons for believing. However this investigation is to be moderated in such a way that we should not ask of anyone a greater feat than what, by his personal situation and way of life, he is capable of.1 To express the matter more clearly: at this present moment I am not obliged to believe or remember anything, because it does not depend on me. But I am sometimes obliged to try to discover reasons, which I may remember, i.e. believe, in future. Most things in moral matters and natural theology could be demonstrated by a similar method. This would be of great importance to the tranquillity of the soul. For demonstration alone begets certainty, certainty alone begets a durable tranquillity, tranquillity alone begets happiness, tranquillity begets happiness.
1. Here Leibniz wrote and then deleted the following: 'Nothing can be objected to this demonstration if anyone accepts the definitions I have put forward. But if anyone were to doubt them, the discussion ends, for it would involve taking the words obligation, to believe etc. in a sense different from mine. However, I declare that I am satisfied with demonstrating the proposition according to the sense of the words which I have supposed, which I think does not differ from their ordinary usage.'
© Lloyd Strickland 2004, 2007