"Parents and schools should place great emphasis on the idea that it is all right to be different. Racism and all the other 'isms' grow from primitive tribalism, the instinctive hostility against those of another tribe, race, religion, nationality, class or whatever. You are a lucky child if your parents taught you to accept diversity."

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Scientific truth is not what any one scientist puts forth. It can be that, but it is generally not. It is the sum of multiple studies that all lean in the same direction in their results conducted by different people at different times of different nationalities with different competitive urges who all end up getting the same result. Then you have an emerging scientific truth, and then you put that in the textbooks, and that will never be shown to be wrong later on.

— Neil deGrasse Tyson