The Stratagem Philosophical Society
The home site of Common Sense
The Stratagem Philosophical Society provides a platform for the examination of the concept and philosophy of Common Sense
The Society.’s postal address is The Stratagem Philosophical Society BM Unifaculty London WC1N 3XX
The Internet address is - General enquiry email address is
the Stratagem Philosophical Society is part of the
Unifaculty Foundation

Many people use the terms Logic and Common Sense as though they are interchangeable. They use them as different words to express the same thing. Whilst Logic and Common Sense sometimes do seem closely similar, they are not the same thing: indeed sometimes they are in direct contradiction to each other.

If someone had two apples and a friend gave them another apple, they would then have three apples. That is both logical and common sense. Where common sense and logic coincide that is often declared to be ‘self-evident’.

However, sometimes logic and common sense depart from each other. For example, logic requires a scientific reasoning. It requires a certain level of intelligence and patience to follow through the procedures which will then bring us to the correct solution. Occasionally we might make a mistake in our reasoning and thereby arrive at a wrong conclusion. That happens when false logic is used.

As the Society’s course on Common Sense reveals, there are many examples of false logic. There are also no examples of false common sense. Common sense may be said to be superior in several ways to calm logic.

An important difference between Logic and Common Sense is a very simple practical one.

If you do not do classical logic you could probably get by through your life. You might even be a runaway success. However, if you do not possess common sense you will struggle to get by and even then usually only with 24/7 support from someone else.

As a wit once explained ... Common Sense is like a deodorant. The people who need it most don’t use it.

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