To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.
In every bit of honest writing in the world… there is a base theme. Try to understand men, if you understand each other you will be kind to each other. Knowing a man well never leads to hate and nearly always leads to love.
The salesman who knows nothing of what he is selling save that he is charging a great deal too much for it.
The pride connected with knowing and sensing lies like a blinding fog over the eyes and senses of men, thus deceiving them concerning the value of existence.