Is it conceivable that there are truths about science, nature or the universe that we are better off not knowing? What might some such truths be?

So Oedipus comes along, gets into a fight with a stranger (his father, unknown to him), and kills his father. Depending on the telling, either the killing was intentional, or it was in self-defense; let's assume the former. If Oedipus intended to kill Laius, and Laius is Oedipus' father, but Oedipus didn't know that Laius was his father, did Oedipus intend to kill his father?

Is our society's assumed negative view of pre-marital sex only because of what is said about it in the Bible? Or does this also account the fact that sex is used for procreation? But at the same time, why is it more shocking to hear that a high school student hasn't had sex rather than has?

Cartesian dualism relies upon two substances, body and mind, which are totally distinguished by their properties. While the characteristic nature of body is Extendedness, the mind is known with its capability of thinking. So, Cartesian Dualism is founded on these two basic propositions: 1. All bodies are extended. And 2. All minds are thinkable. Abandoning the latter, the former (1) seems acceptable to all physicalists. But if so, then its contraposition might be true equally. In other words, physicalists should be agreed with this proposition too: 3. All non-extended are non-body The question is how physicalists justify this proposition? In other hand, the unavoidable consequence of this proposition (and its truth) is existence of a non-extended (entity) which isn't body, which isn't justifiable in reductive physicalism approach. So, considering this proposition that in reductive physicalism approach: 4. everything has identify with physics. But, isn’t paradoxical acceptance of (3) and (4)...

What is a possible world? So I read Quine's two dogmas, and he says that there is no distinction between an analytic statement and a synthetic one. If I have that right. But when people talk about possible worlds they seem to think there is. So if Quine is right there is only one possible world, isn't there?

Even if there is overwhelming evidence in opposition of solipsism, it still cannot be disproven to 100% certainty. Is it just the nature of any conscious entity to have to have faith in their surroundings being external and objective to the mind, while still viewing them subjectively, in order to just live their lives? Or can one really live their entire life suspecting solipsism?

how do i get out of the depression i am in???

If a person is not afraid of non-existance then if he is afaid of death he is actually afraid of the possible pain involved ; does this seem reasonable?

What does 'all things equal' actually mean? I don't understand the expression at all. It surely isn't to be taken literally...unless one is constructing a thought experiment. But philosophers don't only use the phrase when constructing thought experiments. I'm lost.

Was Nietzsche in some sense of the word a pagan? I keep reading he is an atheist but I keep coming across stuff that suggests that he affirmed a vision of the world inspired by the Greeks of vast, beautiful- but indifferent to sentimental morality, forces at the heart of nature.