Truth and science are two different things. Science includes a type of truth, universal truth. Universal truth is the truth that can be known through universal perception; that is, it is the truth that can be known by anyone through their perception of their environment. Now, not all truth can be known by everyone. One reason this is so is that some people simply don’t have the IQ, the intelligence, to know certain things.
Now, science also includes “pretruth.” Pretruth – hypothesis and theory – are ideas that are being studied to determine if they are true. These ideas are uncertainties and potential truths. Therefore, science includes both truth and uncertainty (potential truth).
In simple terms, science includes a mix of truth and something else.
The words highlighted in green all refer to the same thing.