Do not pray for tasks equal to your powers. Pray for powers equal to your tasks.

When you discover you've been leading only half a life, the other half is going to haunt you until you develop it.

Set yourself earnestly to see what you are made to do, and then set yourself earnestly to do it.

There are two ways of defending a castle; one by shutting yourself up in it, and guarding every loop-hole; the other by making it an open centre of operations from which all the surrounding country may be subdued. Is not the last the truest safety?

Go and try to save a soul, and you will see how well it is worth saving, how capable it is of the most complete salvation. Not by pondering about it, nor by talking of it, but by saving it, you learn its preciousness.

Newton's great generalization, which he called the "third law of motion," was that "Action and reaction are always equal to each other;" and that law has been one of the most pregnant of all truths about the mystery of force;--one of the brightest windows through which modern eyes have looked into the world of Nature.

The place where two friends first met is sacred to them all through their friendship, all the more sacred as their friendship deepens and grows old.