Turning on the light is easy if you know where the switch is.

The Americans have always been more open to my ideas. In fact, I could earn a living in America just by lecturing. One of my brightest audiences, incidentally, were the prisoners in a Philadelphia gaol - brighter than my students at university.

I had never doubted my own abilities, but I was quite prepared to believe that "the world" would decline to recognize them.

When we pull back and get, for a moment, the 'bird's eye' view of life, it reveals meanings that are ungraspable by the narrow focus of our usual worm's eye view

Now individual consciousness, as typified in human beings, has great advantages and great disadvantages. Individuality means a narrowing, and narrowness can be useful. It is good for close-up work. We have invented the magnifying glass and the microscope to narrow our vision, because narrowness makes for precision. But narrowness also makes for a failure of purpose, for exhaustion of the will; for purpose depends upon a broad vision, a clear sight of one's objective.

In the mid nineteenth century, the typical murderer was a drunken illiterate; a hundred years later the typical murderer regards himself as a thinking man.

The basic paradox about sex is that it always seems to be offering more than it can deliver. A glimpse of a girl undressing through a lighted bedroom window induces a vision of ecstatic delight, but in the actual process of persuading the girl into bed, the vision somehow evaporates.