Nobody has a right to speak more clearly than he thinks.

The fact of the religious vision, and its history of persistent expansion, is our one ground for optimism. Apart from it, human life is a flash of occasional enjoyments lighting up a mass of pain and misery, a bagatelle of transient experience.

In a sense, knowledge shrinks as wisdom grows, for details are swallowed up in principles. The details for knowledge which are important, will be picked up ad hoc in each avocation of life, but the habit of the active utilization of well-understood principles is the final possession of WISDOM.

From the very beginning of his education, the child should experience the joy of discovery.

Every organism requires an environment of friends, partly to shield it from violent changes, and partly to supply it with its wants.

The misconception which has haunted philosophic literature throughout the centuries is the notion of 'independent existence.' There is no such mode of existence; every entity is to be understood in terms of the way it is interwoven with the rest of the universe.

The guiding motto in the life of every natural philosopher should be, seek simplicity and distrust it.