Fear is the most subtle and destructive of all human diseases.

A sense of curiosity is nature's original school of education.

Things that upset a terrier may pass virtually unnoticed by a Great Dane.

No one who has ever brought up a child can doubt for a moment that love is literally the life-giving fluid of human existence

All of us attain the greatest success and happiness possible in this life whenever we use our native capacities to their fullest extent. ... And every life must be chalked up at least a partial failure when it does not succeed in reaching its inherent destiny.

It is very often asserted that fear is destructive. Yet this is not entirely true; when fear is felt about things that truly threaten security, it is protective. It is very fortunate that humans have an almost unlimited capacity for learning fears; otherwise we would have been eliminated long ago.

If we are deprived of our just due, we naturally experience emotions of anger.