The analysis of variance is not a mathematical theorem, but rather a convenient method of arranging the arithmetic.

Experimental observations are only experience carefully planned in advance, and designed to form a secure basis of new knowledge.

The tendency of modern scientific teaching is to neglect the great books, to lay far too much stress upon relatively unimportant modern work, and to present masses of detail of doubtful truth and questionable weight in such a way as to obscure principles.

Natural selection is a mechanism for generating an exceedingly high degree of improbability.

Inductive inference is the only process known to us by which essentially new knowledge comes into the world.

Although no explanation can be expected to be satisfactory, it remains a possibility among others that Mendel was deceived by some assistant who knew too well what was expected. This possibility is supported by independent evidence that the data of most, if not all, of the experiments have been falsified so as to agree closely with Mendel's expectations.

We have the duty of formulating, of summarizing, and of communicating our conclusions, in intelligible form, in recognition of the right of other free minds to utilize them in making their own decisions.