This collection holds 363 biological quotes, drawn from writers, leaders, artists and thinkers across the QuoteForever archive. The most quoted voices here are Kehlani, Dan Stevens and Janine Benyus.

They are ordered so that each author has a say before anyone repeats, which means the first page gives you the range of the topic rather than one writer's back catalogue.

Use the grid and list views to change how much of each quote you see, follow an author's name to read everything else they said, or open a quote on its own page to copy it, share it, or turn it into a picture quote.

Sex is biological, but gender is mental.

I don't know much about my biological background.

Biological knowledge is doubling every five years.

The biological world always seems poised to innovate.

I don't see any absolute biological limit on human age.

Fathers are biological necessities, but social accidents.

Man's biological weakness is the condition of human culture.

My biological mother had me at 16, and it was just too young.

My life isn't really that different from a biological female.

My adoptive mother always wanted to meet my biological mother.

We have no such weapons at all, no chemical weapons, no biological weapons.

To me, body and mind are different aspects of specific biological processes.

We are embedded in a biological world and related to the organisms around us.

I think adoption becomes complicated whenever the biological parents are alive.

Chemical weapons, biological weapons, and nuclear weapons should never be used.

I have a very non-existent, dysfunctional relationship with my biological mother.

I want to be present for my kids, and my biological father wasn't present for me.

I never went through a biological clock experience. I never even heard it ticking.

Do men have a biological clock? I feel like I do. Something is definitely ticking!

My mom was a biological illustrator for a time before computers replaced that job.

The only way an Iraqi biological agent would kill you is if it landed on your head.

All I do is look, listen and try to make sense of what I find, in biological terms.

Being sent away to school was no different from my biological mother giving me away.

Consumer behaviour is a powerful realm from which to explore our biological heritage.

A lot of times, you try and please your biological family, and you can't please them.

Oberst is one of those musicians that some people hate in a visceral, biological way.

With respect to parenting, biological age is not, for men, the concern it is for women.

I think my biological clock ticking is more worrying for me than getting the right roles.

In many biological structures proteins are simply components of larger molecular machines.

My biological mother made my clothes or bought my clothes from Salvation Army or Goodwill.

I was never obsessed with being adopted. I was simply curious about my biological parents.

A theoretical grounding in agronomy must, therefore, include knowledge of biological laws.

It's so hard to figure out what's going on in biological systems. You just can't see them.

The natural superiority of women is a biological fact, and a socially acknowledged reality.

Physiology has spawned many biological sciences, amongst them my own field of pharmacology.

Scientists now believe that the primary biological function of breasts is to make males stupid.

My husband and I had five biological children but we also have been raising 23 foster children.

I lost my biological father at nine, but up until then, we celebrated Christmas and Easter too.

There is more and more data indicating that there is a biological basis to your political views.

There is a certain element of complementarity between men and women that is biological by nature.

The human race has a yearning to explore. That's part of our biological and psychological makeup.

We must perfect a worldwide system of accountability for nuclear, biological and chemical weapons.

I've got my roots in Northern Ireland - my biological father's side of the family were from Belfast.

This oxidation of hydrogen in stages seems to be one of the basic principles of biological oxidation.

I am a biological female. I have two children. I've been married for 16 years. I've never been a man.

Scientific careers rely on inheritance, environment, and random events, like all biological phenomena.

My mom had did a wonderful job of giving me two great dads: I had a biological and non-biological dad.

For me, the peculiar qualities of faith are a logical outcome of this level of biological organization.

If reincarnation is a useful biological idea it is certain that somewhere in the universe it will happen.

What I'm very concerned about is how do we bolster our self-awareness as humans, as biological organisms?

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