True poetry is truer than science, because it is synthetic, and seizes at once what the combination of all the sciences is able, at most, to attain as a final result.

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

To understand is to possess the thing understood, first by sympathy and then by intelligence.

[T]he habit of scientific analysis ... exhausts the material offered to it.

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.

Oh be swift to live, make haste to be kind.

Every living being seeks instinctively to complete itself.