Nothing is beautiful, only man: on this piece of naivete rests all aesthetics, it is the first truth of aesthetics. Let us immediately add its second: nothing is ugly but degenerate man - the domain of aesthetic judgment is therewith defined.
Friedrich Nietzsche

On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined.
Edward Witten

Our scientific age demands that we provide definitions, measurements, and statistics in order to be taken seriously. Yet most of the important things in life cannot be precisely defined or measured. Can we define or measure love, beauty, friendship, or decency, for example?
Dennis Prager

Partly because his life ended before the age of 50, Hamilton was defined by the other founding fathers, and he managed, with amazing consistency, to alienate most of them.
Ron Chernow

Perfection cannot be defined or seen; it can only be found in your heart.
Kelly Millar

Practice rather than preach. Make of your life an affirmation, defined by your ideals, not the negation of others. Dare to the level of your capability then go beyond to a higher level.
Alexander Haig

Punk was defined by an attitude rather than a musical style.
David Byrne

Recognition of this kinship with the rest of the universe is necessary for understanding him, but his essential nature is defined by qualities found nowhere else, not by those he has in common with apes, fishes, trees, fire, or anything other than himself.
George G. Simpson

Religion may be defined thus: a belief in, and homage rendered to, existences unseen and causes unknown.
Frances Wright

Right action tends to be defined in terms of general individual rights and standards that have been critically examined and agreed upon by the whole society.
Lawrence Kohlberg

Rightly defined philosophy is simply the love of wisdom.
Marcus Tullius Cicero

Science is defined in various ways, but today it is generally restricted to something which is experimental, which is repeatable, which can be predicted, and which is falsifiable.
Walter Lang

So then, the relationship of self to other is the complete realization that loving yourself is impossible without loving everything defined as other than yourself.
Alan Watts

Social history might be defined negatively as the history of a people with the politics left out.
G. M. Trevelyan

Specifically, the reservation of sovereignty to the people of the states in matters not governed by federal law is constitutionally defined and permanently enshrined in the 10th Amendment.
Dick Thornburgh

Texas was defined by its larger-than-life characters, particularly politicians.
Jessica Savitch

The corporate woman has been defined as the 'liberated woman' and I see that as the exact opposite. I think she now is more enslaved, maybe even more than the housewife was; because she's so out of her power, and imitating male power is not female power.
Kenny Loggins

The day I showed up to South Carolina to work, I was with my kid and my ex and our dog and Kirk was hanging with this weird guy and I kind of defined the two of them by his friend and made a vow to avoid him.
Donal Logue

The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life, for only then do they have to fall back on their reserves.
Leon Trotsky

The evolution of humans can not only be seen as the grand total of their wars; it is also defined by the evolution of the human mind and the development of the human consciousness.
Friedrich Durrenmatt