All progress is experimental.

The power of quotation is as dreadful a weapon as any which the human intellect can forge.

Benevolence alone will not make a teacher, nor will learning alone do it. The gift of teaching is a peculiar talent, and implies a need and a craving in the teacher himself.

The men and woman who make the best boon companions seem to have given up hope of doing something else...some defect of talent or opportunity has cut them off from their pet ambition and has thus left them with leisure to take an interest in their lives of others. Your ambition may be, it makes him keep his thoughts at home. But the heartbroken people - if I may use the word in a mild, benevolent sense - the people whose wills are subdued to fate, give us consolation, recognition, and welcome.

If any of you ... have a mind to make himself heard a mile off, you must make a bonfire of your reputations, and a close enemy of most men who would wish you well.

Wherever you see a man who gives someone else's corruption, someone else's prejudice as a reason for not taking action himself, you see a cog in The Machine that governs us.

Our goodness comes solely from thinking on goodness; our wickedness from thinking on wickedness. We too are the victims of our own contemplation.