"Facts must be facts. Nature cannot contradict herself."Truth
"The first condition of successful teaching is that the teacher shall desire to teach."Education
"Do not suppose that because you have found a reason for a thing to exist, you have found a complete explanation of it."Philosophy
"Concentrated attention is the gateway to all good things."
"I had rather be the hammer in the hands of good men than in the hands of evil men."Strength
"When the power of light and electricity become one, mysteries shall unfold."Science
"The future of civilization depends upon the spread of knowledge."Education
"Let your love for others be your guide to the unknown."Love
"Nature tends toward order, even in seeming chaos."Nature
"The beauty of a scientific truth resides in its simplicity and inevitability."Science
"What is the good of a philosophy which is true in theory but fails in practice?"Philosophy
"Real teaching is one of the most powerful of human agencies."Education
"The young must be prepared to face a future we cannot imagine."Hope
"Faith in human nature is not naiveté but necessity."Faith
"I cannot tell whether I am right or wrong; I am too much a man of the times."
"Knowledge is power, but wisdom is knowing when not to use it."Wisdom
"The path of discovery requires both courage and humility."Courage
"Excellence is not an act but a habit forged through constant effort."Perseverance
"Patience is the companion of wisdom."Patience
"The smallest particle contains within it the laws of the universe."Science
"Love of truth must exceed the fear of being wrong."Truth
"To live without friendship is like dwelling alone in a wilderness."Friendship
"The greatest discoveries often come from the simplest observations."Knowledge
"Purpose gives meaning to the most mundane labor."Motivation
"What we do by lamplight, the world sees by sunlight."Truth
"The mind that opens to a new idea never returns to its original dimensions."Change
"Gratitude is the soil in which virtue grows."Gratitude
"The pursuit of knowledge is itself the highest good."Education
"Nature speaks to us in a language we are only beginning to understand."Nature
"To educate is to emancipate."Education