Intellectual tasting of life will not supersede muscular activity.

Treat your friend as a spectacle.

Society will pardon much to genius and special gifts; but, being in its nature conventional, it loves what is conventional, or what belongs to coming together.

No great man ever complains of want of opportunity.

Wisdom is like electricity. There is no permanently wise man, but men capable of wisdom, who, being put into certain company, or other favorable conditions, become wise for a short time, as glasses rubbed acquire electric power for a while.

The power which resides in him is new in nature, and none but he knows what that is which he can do, nor does he know until he has tried.

In science we have to consider two things: power and circumstance.