Concentrate all your thoughts upon the work in hand. The Sun’s rays do not burn until brought to a focus

I had made up my mind to find that for which I was searching even if it required the remainder of my life. After innumerable failures I finally uncovered the principle for which I was...

Man is the result of slow growth; that is why he occupies the position he does in animal life. What does a pup amount to that has gained its growth in a few days or...

Don’t keep forever on the public road,going only where others have gone, and following one after the other like a flock of sheep. Leave the beaten track occasionally and dive into the woods. ‘Every time...

The inventor…looks upon the world and is not contented with things as they are. He wants to improve whatever he sees, he wants to benefit the world; he is haunted by an idea.

When one door closes, another door opens; but we so often look so long and regretfully upon the closed door, that we do not see the ones which open for us.