All business proceeds on beliefs, or judgments of probabilities, and not on certainties.

In some small field each child should attain, within the limited range of its experience and observation, the power to draw a justly limited inference from observed facts.

Be unselfish. That is the first and final commandment for those who would be useful and happy in their usefulness. If you think of yourself only, you cannot develop because you are choking the source of development, which is spiritual expansion through thought for others.

There is no mystery about successful business.... Exclusive attention to the person who is speaking to you.

Nobody has any right to find life uninteresting or unrewarding who sees within the sphere of his own activity a wrong he can help to remedy, or within himself an evil he can hope to overcome.

Let us remember that the times which future generations delight to recall are not those of ease and prosperity, but those of adversity bravely borne.

In the modern world the intelligence of public opinion is the one indispensable condition for social progress.