The first sign of extravagance is to buy trousers that one does not need.
Science exists, moreover, only as a journey toward troth. Stifle dissent and you end that journey.
[Intellectual courage is] the quality that allows one to believe in one's judgement in the face of disappointment and widespread skepticism. Intellectual courage is even rarer than physical courage.
Our assessment of socio-economic worth is largely a sham. We scientists should not lend ourselves to it - though we routinely do. We should, instead, insist on applying the criterion of quality.
Idealism is the highest form of reason.
In education the appetite does indeed grow with eating. I have never known anyone to abandon study because they knew too much.
Authority in science exists to be questioned, since heresy is the spring from which new ideas flow.
The leadership spirit comes with a spirit of leadership.
Unfortunately, little attention was paid to how Arafat ruled. In fact, some saw the harsh and repressive nature of Arafat's regime as actually bolstering the prospects for peace.
Prayer brings a good spirit in our homes. For God hears prayer. Heaven itself would come down to our homes. And even though we who constitute the home all have our imperfections and our failings, our home would, through God's answer to prayer, become a little paradise.
We make music for a living. Like I've always said, if you like what you're doing, you're halfway there; if someone else likes it, that's even better. If they don't like it, at least you like it. Not to be selfish, but you kind of have to be.