My internal and external life depend so much on the work of others that I must make an extreme effort to give as much as I receive.

The mathematician knows some things, no doubt, but not those things one usually wants to get from him.

Brief is this existence, as a visit in a strange house. The path to be pursued is poorly lit by a flickering consciousness.

While it is true that science, to the extent of its grasp of causative connections, may reach important conclusions as to the compatibility and incompatibility of goals and evaluations, the independent and fundamental definitions regarding goals and values remain beyond science's reach.

Three great forces rule the world: stupidity, fear and greed.

The majority of the stupid is invincible and guaranteed for all time. The terror of their tyranny, however, is alleviated by their lack of consistency.

The normal objective of my thought affords no insight into the dark places of human will and feeling.