On Ideas

 Ideas don't fall in love with each other, people do.

Ideas are either brilliant or stupid, with all shades on enlightenment between them. Ideas can be useful or pointless, with many gradations of utility between them.

Since ideas emanate from people, people can be either brilliant or stupid when they originate or obtain ideas, with many chances to find intellectual enlightenment during the course of their lifetimes though the application of thought.

Ideas are of several kinds, rational or irrational. Rational thought is achieved through learning and using our reasoning powers, while irrational thought is either inflicted on someone by someone else though belief or obtained organically through insanity.

People, therefore, are also rational or irrational, although most are a mix of both, since human beings are by nature both reasonable and unreasonable. A person's identity and character can be determined by observing what parts of that person is based on reason and what parts are spoiled by irrationality, although both are needed to form a person. For example, we use our reason when we don't step into traffic and we use our irrationality when we fall in love or go to war. It's obvious why we should not step into traffic, since doing so would end us, but falling in love or going to war are uncertain because we can not ever really predict or know the person we love or are to kill.

So we have to repeat again that people are both rational and irrational because their ideas don't fall in love with each other but simply correspond to their reason or their beliefs.

That is why they do things and either survive or are destroyed.