The best system of education is that which draws its chief support from the voluntary effort of the community, from the individual efforts of citizens, and from those burdens of taxation which they voluntarily impose upon themselves.

I love agitation and investigation and glory in defending unpopular truth against popular error.

Tortured for the Republic.

[Science] is the literature of God written on the stars-the trees-the rocks-and more important because [of] its marked utilitarian character.

Territory is but the body of a nation. The people who inhabit its hills and valleys are its soul, its spirit, its life.

Ideas control the world.

They grow stiff in the joints. They get in a rut. They go to seed.