[Freud's] sense of reality is less clouded by wishful thinking than is the case with other people and [he combines] the qualities of critical judgment, earnestness and responsibility.

Although words exist for the most part for the transmission of ideas, there are some which produce such violent disturbance in our feelings that the role they play in the transmission of ideas is lost in the background.

No problem is ever solved in the same consciousness thas was used to create it.

Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.

It is every man's obligation to put back into the world at least the equivalent of what he takes out of it.

In the midst of difficulty lies opportunity.

If I would follow your advice and Jesus could perceive it, he, as a Jewish teacher, surely would not approve of such behavior.