Leon Trotsky

"Without international revolution, socialism in one country is impossible."

"A person who doubts himself is like a man who would enlist in the army of his enemies."

"The more you know, the more you realize you don't know."

"History does not repeat itself, but it often rhymes."

"Patience is not a passive virtue but an active one."

"The future belongs to those who believe in the beauty of their dreams."

"Science without conscience is the ruin of the soul."

"The family unit is a reflection of the economic system."

"Music moves the human soul like nothing else can."

"Nature teaches us the lessons we refuse to learn from history."

"A person is healthy only insofar as he realizes the necessity of changing himself."

"The adventure of life is found in the struggle for justice."

"Imagination is more powerful than knowledge."

"Technology is a tool, not a master."

"The pen is mightier than the sword, but only when backed by conviction."

"Money is frozen labor."

"Fear is the weapon of tyrants."

"Gratitude is the memory of the heart."

"Beauty lies in the struggle, not in the victory."

"Death is not the worst that can happen; slavery is."

"Perseverance is not the absence of doubt but the commitment despite it."

"Kindness is often mistaken for weakness by the powerful."

"The solitude of thought is necessary for true understanding."

"Wisdom is the ability to see the connection between all things."

"Happiness cannot be pursued; it can only be achieved through purposeful action."

"Success is measured not by wealth but by the impact on humanity."

"True friendship is built on shared principles and mutual struggle."

"Love of humanity must precede love of nation."

"Time is the one resource that cannot be recovered once spent."

"The greatest teacher is experience born from struggle."