The will to persevere is often the difference between failure and success.
Work and live to serve others, to leave the world a little better than you found it and garner for yourself as much peace of mind as you can. This is happiness.
We cannot banish dangers, but we can banish fears. We must not demean life by standing in awe of death.
I have learned to have more faith in the scientist than he does in himself.
Nobody can be successful if he doesn't love his work, love his job.