The religion which is to guide and fulfill the present and coming ages, whatever else it be, must be intellectual. The scientific mind must have a faith which is science.

Enthusiasm is one of the most powerful engines of success. When you do a thing, do it with all your might.

Our strength grows out of our weakness.

Society, to be sure, does not like this very well; it saith, Whoso goes to walk alone, accuses the whole world; he declares all to be unfit to be his companions; it is very uncivil, nay, insulting; Society will retaliate.

Let us be poised, wise and our own today.

There is always room for a man of force and he makes room for many. Society is a troop of thinkers and the best heads among them take the best places.

The narrow sectarian cannot read astronomy with impunity. The creeds of his church shrivel like dried leaves at the door of the observatory.