"We shall make mistakes; and if we..." - Quote by Theodore Roosevelt

“Conservation means development as much as it does protection. I recognize the right and duty of this generation to develop and use the natural resources of our land; but I do not recognize the right to waste them, or to rob, by wasteful use, the generations that come after us.”

“Optimism is a good characteristic, but if carried to an excess, it becomes foolishness. We are prone to speak of the resources of this country as inexhaustible; this is not so.”

“Of all the questions which can come before this nation, short of the actual preservation of its existence in a great war, there is none which compares in importance with the great central task of leaving this land even a better land for our descendants than it is for us.”

“Do not dwell upon the sins and mistakes of yesterday so exclusively as to have no energy and mind left for living rightly today, and do not think that the sins of yesterday can prevent you from living purely today.”

“Most business mistakes are irreversible setbacks, but you get another chance. There are two things in life that you don't get another chance at - marrying the wrong person and what you do with your children.”

“Don't ever make the same mistake twice unless it pays.”

“To expect ... the same service from raw and undisciplined recruits, as from veteran soldiers, is to expect what never did and perhaps never will happen. Men, who are familiarized to danger, meet it without shrinking; whereas troops unused to service often apprehend danger where no danger is.”

“The three most harmful negative emotions are anger, guilt, and fear. And anger is number one. It is also the strongest and most dangerous of all passions.”

“The muttered hint, "Remember, you have a stroke here," freezes my joints like a blast from Siberia.”