The investor who permits himself to be stampeded or unduly worried by unjustified market declines in his holdings is perversely transforming his basic advantage into a basic disadvantage.
Benjamin GrahamThe individual investor should act consistently as an investor and not as a speculator. This means ... that he should be able to justify every purchase he makes and each price he pays by impersonal, objective reasoning that satisfies him that he is getting more than his money's worth for his purchase.
Benjamin GrahamAlways remember that market quotations are there for convenience, either to be taken advantage of or to be ignored.
Benjamin Graham