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"The past is always present in the way we live now."
The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.
In a state, the liberty of one citizen is the liberty of all.
The beauty of physics lies in its ability to explain the complex with simple, elegant theories.
Safety must always come first in mining operations.
Logic is the foundation of all mathematical reasoning.
Sometimes it's very difficult being a dog…