Do not, for one repulse, give up the purpose that you resolved to effect. (William Shakespeare, British dramatist)

Don’t give up your original determination just because of one failure. the purpose achieved. (British playwright Shakespeare.W.)

Don't part with your illusions. When they are gone you may still exist, but you have ceased to live. (Mark Twain, American writer)

Don't give up on your fantasy. When the illusion is gone, you can still survive, but even though you are alive, you are still dead. ((American writer Mark Twain)

I want to bring out the secrets of nature and apply them for the happiness of man. I don't know of any better service to offer for the short time we are in the world. (Thomas Edison, American inventor)

I want to reveal the secrets of nature and use them to benefit mankind. I think that in our short life, there is no better contribution than this. (American inventor Thomas Edison)

Ideal is the beacon. Without ideal, there is no secure direction; without direction, there is no life. (Leo Tolstoy, Russian writer)

Ideals are guiding lights. Without ideals, there is no firm direction; without direction, there is no life.

(Russian writer Tolstoy.)

If winter comes, can spring be far behind? (P. B. Shelley, British poet)

If winter comes, can spring be far behind? (British poet, Shelley. P. B.)

If you doubt yourself, then indeed you stand on shaky11 ground.(

Ibsen, Norwegian dramatist)

If you doubt yourself, then indeed you stand on shaky11 ground (Norway. Playwright Henrik Ibsen)

If you would go up high, then use your own legs! Do not let yourselves carried aloft; do not seat yourselves on other people's backs and heads. (F. W. Nietzsche , German Philosopher)

If you want to go high, use your own two legs! Don't let others lift you to high places; don't sit on other people's backs or heads.

(German philosopher Nietzsche. F. W.)

It is at our mother's knee that we acquire our noblest and truest and highest, but there is seldom any money in them. (Mark Twain, American writer)

It is at our mothers' knees that we acquire our noblest, truest, and loftiest ideals, but there is rarely any money in them. (American writer Mark Twain)

Living without an aim is like sailing without a compass.

Alexander Dumas (Davy de La Pailleterie, French Writer)

Living without a goal is like sailing without a compass. (French writer Alexandre Dumas. A.)