Wisdom and compassion must walk together. Having wisdom without compassion is like walking with one foot. You will fall down. If you have both wisdom and compassion, you can walk very well, step by step.
The earth is not a mere fragment of dead history, a stratum upon stratum like the leaves of a book, to be studied by biologists and antiquarians chiefly, but living poetry like the leaves of a tree, which precede flowers and fruit — not a fossil earth but a living earth.