The best Quotations

Tsze-kung asked, saying, is there one word which may serve as a rule of practice for all one's life?'' the master said, ''is not reciprocity such a word? what you do not want done to yourself, do not do to others.
- Confucius

Do you know the writers of the following quotations?

Quotation In all human affairs there are efforts, and there are results, and the strength of effort is the measure of the results. - writer
Quotation Still your mind in me, still yourself in me, and without a doubt you shall be united with me, Lord of Love, dwelling in your heart. - writer
Quotation Instead of killing and dying in order to produce the being that we are not, we have to live and let live in order to create what we are. - writer
Quotation Under capitalism, man exploits man. Under communism it's just the opposite. - writer
Quotation Thinking is the hardest work there is, which is the probable reason so few engage in it. - writer
Quotation A memorandum is not written to inform the reader, but to protect the writer. - writer