A man has always to be busy with his thoughts if anything is to be accomplished.

quote by Antonie van Leeuwenhoek
Added by Lucian Velea
Comment! | Vote! | Copy!

Whenever I found out anything remarkable, I have thought it my duty to put down my discovery on paper, so that all ingenious people might be informed thereof.

quote by Antonie van Leeuwenhoek
Added by Lucian Velea
Comment! | Vote! | Copy!