If you think taking care of yourself is selfish, change your mind. If you don't, you're simply ducking your responsibilities.
Man is only miserable so far as he thinks himself so.
There are sadistic scientists who hurry to hunt down errors instead of establishing the truth.
No one gossips about other people's secret virtues.
So many of our dreams at first seem impossible, then they seem improbable, and then, when we summon the will, they soon become inevitable.
Our problems are man-made, therefore they may be solved by man. And man can be as big as he wants. No problem of human destiny is beyond human beings.
In real life, unlike in Shakespeare, the sweetness of the rose depends upon the name it bears. Things are not only what they are. They are, in very important respects, what they seem to be.