Herbert Spencer

"The man who never made a mistake never tried anything new."

"The ultimate principle is that consciousness is the only reality."

"Life without struggle produces neither strength of mind nor strength of character."

"Goodness is not something to be preached but to be practiced."

"The thoughts we think determine the persons we become."

"Education is the most powerful tool we can use to change the world."

"The capacity to think is what separates us from the animals."

"Every doctrine which exalts utility must ultimately fail."

"Peace is purchased at too high a price if it requires the surrender of principle."

"The evolution of society is the evolution of morality."

"The great aim of education is not knowledge but action."

"Life is the continuous adjustment of internal relations to external relations."

"Education is the most perfect and powerful engine of social progress."

"Science is organized knowledge."

"The extent to which we can decrease social friction determines our capacity for growth."

"Progress is not an accident but a necessity."

"A man's power is his will and the application of it."

"The truth is that the best thing to do is usually something unstated."

"The ultimate result of shielding men from the effects of folly is to fill the world with fools."

"Beware of mistaking intensity for importance."

"The greatest delight which the fields and woods minister is the suggestion of an occult relation between man and the vegetable."

"Every man is free to do that which he wills, provided he infringes not the equal freedom of every other man."

"Time is the vehicle of thoughts."

"Action and reaction are equal and opposite."

"The creation of a thousand forests is in one acorn."

"Society exists for the benefit of its members; not the members for the benefit of society."

"The social organism cannot be perfected by constitutional tinkering."

"Complaining is the refuge of the weak."

"Do not let your mind be imprisoned by other men's beliefs."

"The principle that every person shall be free to do all that he wills, provided he does not infringe the equal freedom of others."