The people I distrust most are those who want to improve our lives but have only one course of action.
Whenever people agree with me I always feel I must be wrong.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I found it!) but 'That's funny ...'
If your daily life seems poor, do not blame it; blame yourself, tell yourself that you are not poet enough to call forth its riches.
Man is the only animal that can remain on friendly terms with the victims he intends to eat until he eats them.
Never rely on the glory of the morning nor the smiles of your mother-in-law.
Every day you may make progress. Every step may be fruitful. Yet there will stretch out before you an ever-lengthening, ever-ascending, ever-improving path. You know you will never get to the end of the journey. But this, so far from discouraging, only adds to the joy and glory of the climb.