I am absolutely against positive thinking. You will be surprised that if you don't choose, if you remain in a choiceless awareness, your life will start expressing something which is beyond both positive and negative, which is higher than both. So you are not going to be a loser. It is not going to be negative, it is not going to be positive, it is going to be existential.
... what we can be positive about is what we have just said, namely that they must be given the right education, whatever that may be, as the surest way to make them behave humanely to each other and the subjects in their charge.
Let your thoughts be positive for they will become your words.
Let your words be positive for they will become your actions.
Let your actions be positive for they will become your values.
Let your values be positive for they will become your destiny.
Whatever may be his true and final destination, there is a spirit within him at enmity with nothingness and dissolution. This is the character of all life and being.