Every man is a priest, even involuntarily; his conduct is an unspoken sermon, which is forever preaching to others.

Time is but the measure of the difficulty of a conception. Pure thought has scarcely any need of time, since it perceives the two ends of an idea almost at the same moment.

To know how to suggest is the great art of teaching. To attain it we must be able to guess what will interest; we must learn to read the childish soul as we might a piece of music. Then, by simply changing the key, we keep up the attraction and vary the song.

Conquering any difficulty always gives one a secret joy, for it means pushing back a boundary-line and adding to one's liberty.

The man who has no inner-life is a slave to his surroundings.

Let us be true: this is the highest maxim of art and of life, the secret of eloquence and of virtue, and of all moral authority.

To be misunderstood even by those whom one loves is the cross and bitterness of life. It is the secret of that sad and melancholy smile on the lips of great men which so few understand; it is the cruelest trial reserved for self-devotion; it is what must have oftenest wrung the heart of the Son of man; and if God could suffer, it would be the wound we should be forever inflicting upon Him. He also - He above all - is the great misunderstood, the least comprehended.