It is characteristic of spontaneous friendship to take on first, without enquiry and almost at first sight, the unseen doings and unspoken sentiments of our friends; the parts known give us evidence enough that the unknown parts cannot be much amiss.

When men and women agree, it is only in their conclusions; their reasons are always different.

To condemn spontaneous and delightful occupations because they are useless for self-preservation shows an uncritical prizing of life irrespective of its content.

Nature in denying us perennial youth has at least invited us to become unselfish and noble.

Imagination is potentially infinite. Though actually we are limited to the types of experience for which we possess organs, those organs are somewhat plastic. Opportunity will change their scope and even their center.

If clearness about things produces a fundamental despair, a fundamental despair in turn produces a remarkable clearness or even playfulness about ordinary matters.

Science is nothing but developed perception, interpreted intent, common sense rounded out and minutely articulated.