Who then can calculate the path of the molecule? how do we know that the creations of worlds are not determined by the fall of grains of sand?

Winter is on my head, but eternal spring is in my heart. The nearer I approach the end, the plainer I hear around me the immortal symphonies of the worlds which invite me. . . . For half a century I have been writing thoughts in prose, verse, history, drama, romance, tradition, satire, ode, and song. I have tried them all, but I feel I have not said a thousandth part of that which is within me. When I go down to the grave, I can say "I have finished my day's work," but I cannot say "I have finished my life's work."

Each of our passions, even love, has a stomach that must not be overloaded. We must in everything write the word 'finis' in time; we must restrain ourselves, when it becomes urgent; we must draw the bolt on the appetite, play a fantasia on the violin, then break the strings with our own hand. The Wise man is he who knows when and how to stop.

What love commences can be finished by God alone.

My greatness does not extend to this shelf.

The onward march of the human race requires that the heights around it constantly blaze with noble lessons of courage. Deeds of daring dazzle history and form one of man's guiding lights.

Social prosperity means man happy, the citizen free, the nation great.