Proposition

I wish only to preserve the mental outlook which inspired the denial, the attitude which, in thought, regards the past as having the same reality as the present and the same importance as the future.

"Insofar," says Spinoza, footnote one, Ethics, Book IV, Proposition sixty-two, end of footnote one, "as the mind conceives a thing according to the dictate of reason, it will be equally affected whether the idea is that of a future, past, or present thing." It is this conceiving according to the dictate of reason that I find lacking in the philosophy which is based on evolution.

Four, good and evil.

Mysticism maintains that all evil is illusory, and sometimes maintains the same view as regards good, but more often holds that all reality is good.

Questions of this nature can now be answered with a precision and certainty which were formerly quite impossible, and in the chains of reasoning that the answer requires the unity of all mathematical studies at last unfolds itself.

In the great majority of mathematical textbooks, there is a total lack of unity in method and of systematic development of a central theme.

Propositions of very diverse kinds are proved by whatever means are thought most easily intelligible, and much space is devoted to mere curiosities which in no way contribute to the main argument.

But in the greatest works, unity and inevitability are felt as in the unfolding of a drama.