We should cultivate the optimistic temperament, and endeavour to see the good that dwells in everything. If we sit down and lament over the imperfection of our bodies and our minds, we profit nothing; it is the heroic endeavour to subdue adverse circumstances that carries our spirit upward.
The most common cause of low prices is pessimism - some times pervasive, some times specific to a company or industry. We want to do business in such an environment, not because we like pessimism but because we like the prices it produces. It's optimism that is the enemy of the rational buyer.
The vanishing, volatile froth of the present which any shadow will alter, any thought blow away, any event annihilate, is every moment converted into the adamantine.
An optimist will tell you the glass is half-full; the pessimist, half-empty; and the engineer will tell you the glass is twice the size it needs to be.
But the nearer the dawn the darker the night, And by going wrong all things come right. Things have been mended that were worse, and the the worse, the nearer they are to mend.