For the best return on your money, pour your purse into your head.
The view that the truth is one and undivided, and the same for all men everywhere at all times, whether one finds it in the pronouncements of sacred books, traditional wisdom, the authority of churches, democratic majorities, observation and experiment conducted by qualified experts, or the convictions of simple folks uncorrupted by civilisation---this view, in one form or another, is central to western thought, which stems from Plato and his disciples.
Societies would _not_ be better off if everyone were like Mr Spock, all rationality and no emotion. Instead, a balance - a teaming up of the internal rivals - is optimal for brains. ... Some balance of the emotional and rational systems is needed, and that balance may already be optimized by natural selection in human brains.