It is love rather than sexual lust or unbridled sexuality if, in addition to the need or want involved, there is also some impulse to give pleasure to the persons thus loved and not merely to use them for our own selfish pleasure.
The rate of technological and human physiological change in the 20th century has been remarkable. Beyond that, a synergy between the improved technology and physiology is more than the simple addition of the two.
In addition, we were unable to meet openly to discuss the progress of the book, for we were both on the list of persons banned from communicating with other banned persons.
Life does not proceed by the association and addition of elements, but by dissociation and division.
Every addition to true knowledge is an addition to human power.
Living is like working out a long addition sum, and if you make a mistake in the first two totals you will never find the right answer. It means involving oneself in a complicated chain of circumstances.