Amid the vastness of the things among which we live, the existence of nothingness holds the first place; its function extends over all things that have no existence, and its essence, as regards time, lies precisely between the past and the future, and has nothing in the present.

The stupid speak of the past, the wise of the present, and fools of the future.

Those who cannot change their minds cannot change anything.

The uncertainty and importance of the present reduce the past and future to comparative insignificance, and clear the mind of minor worries. And when all is over, memories remain which few men do not hold precious.

If we open a quarrel between past and present we shall find that we have lost the future.

Anything that seems to be set in stone or inalterable can, indeed, change. In matters both large and small, it holds true that every change begins in the mind.