"Think of yourself as on the threshold of unparalleled success. A whole, clear, glorious life lies before you. Achieve…" — Andrew Carnegie

It is better to plan less and do more

One never notices what has been done; one can only see what remains to be done

You should trust any man in his own art provided he is skilled in it.

In science, we must be interested in things, not in persons

Do anything rather than give yourself to reverie

Difficulty is the element, and resistance the true work of a man

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