Lev Landau

Lev Davidovich Landau (1908-01-22 – 1968-04-01) was a prominent Soviet physicist who made fundamental contributions to many areas of theoretical physics.

Sourced

• Главное, делайте всё с увлечением, это страшно украшает жинь.
  • It is important to do everything with enthusiasm, it embellishes life enormously.
  • in a letter to his niece Maya Bessarab, as quoted by her in Lev Landau, biography. Moscovskiy Rabochiy (Moscow Worker). 1971. 
• This work contains many things which are new and interesting. Unfortunately, everything that is new is not interesting, and everything which is interesting, is not new.
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• We mathematicans are all a bit crazy.
  • [2]

Unsourced

• The most terrible sin is boredom! ... Here comes the Day of Judgement, God will call and ask: "Why not enjoy all the benefits of life? Why so boring?^{[citation needed]}
• From thick books one can not learn anything new. A thick book is a cemetery where antiquated ideas are laid to rest.^{[citation needed]}
• Cosmologists are often in error, but never in doubt.^{[citation needed]}