“Where are the real sources of human dignity, freedom and modern democracy, if not in the concept of infinity to which all men are equal?”

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.

There are no such things as applied sciences, only applications of science.

I am on the edge of mysteries and the veil is getting thinner and thinner.

Gentlemen, it is the microbes who will have the last word.

The Ancients understood the omnipotence of the underside of things.

Will opens the door to success, both brilliant and happy.

whatever your career may be, do not let yourselves become tainted by a deprecating and barren scepticism, do not let yourselves be discouraged by the sadness of certain hours which pass over nations.

The only thing that can bring joy is work.

To know how to wonder and question is the first step of the mind toward discovery.

Intuition is given only to him who has undergone long preparation to receive it.

I am utterly convinced that Science and Peace will triumph over Ignorance and War, that nation will eventually unite not to destroy but to edify, and that the future will belong to those who have done the most for the sake of suffering humanity.

Where observation is concerned, chance favors only the prepared mind.

It is surmounting difficulties that make heroes.

Chance favors the prepared mind.

There is a time in every man’s life when he looks to his God, when he looks at his life, when he wonders how he will be remembered.

When I approach a child he inspires in me two sentiments tenderness for what he is and respect for what he may become.

Republican leadership has endless amounts of money for bloated military budgets and tax breaks for billionaires. But when working families need help, oh my God, we can’t afford it!

We simply cannot re-elect a president who does not believe in the rule of law and our constitution.

I think the notion that we have all the democracy that money can buy strays so far from what our democracy is supposed to be.

The Republicans handing over a crippling economy to the Democrats and immediately blaming them for it will never get old.

Voter suppression is a very real and present threat to our democracy.

This is not a time to take our foot off the gas pedal. If we rally the American people, we can get a hell of a lot done.

Democracy is wasted on people who don’t respect it.

The vote is the most powerful nonviolent tool we have.