Knowledge
Close-up of man holding hands
Boy playing with toy at home
Scenic view of sea against sky during sunset
Midsection of woman writing in diary on table
Rear view of girl drawing on blackboard
Low angle view of multi colored straws
Full length of girl sitting at beach against sky
Portrait of couple holding hands
Mature businessman discussing over digital tablet with female colleague in cafe
Golden boxes against wall
Cropped hands of female instructor and senior man tying rope on yacht's railing
Close-up of businessman writing and drawing in notebook
Monks reading book at temple
Midsection of girl drawing on paper at home
Close-up of hand holding painting brush at messy table
Midsection of man teaching music to student
Midsection of woman reading book
Midsection of woman holding hands
Rear view of man standing on mountain in forest
Profile view of young woman touching green computer monitor
Beautiful man playing padel tennis, smiling after a win. young sporty boy at the end of the match
Side view of young woman looking books in shelf at library
Monitor teaching padel class to man, his student - trainer teaches boy how to play padel
Cropped hand of woman holding bible in church
Man reading book while sitting in hammock at forest
Scenic view of mountains against sky
Rear view of silhouette man standing against illuminated light
Full length of woman on sand dune in desert against sky
Low angle view of man playing violin against blue sky
Close-up of hands playing piano
Full frame shot of books in library
Close-up of hands holding book
Full frame shot of empty chairs
Drum line warming up before a football game
Young girl playing keyboard at home
Young woman holding camera while standing in city during summer
Portrait of young female student in corridor of university
Coach teaching volleyball to teenage girl in court
Boy playing with toy at home
Midsection of man writing in book on table
Teenage girl wearing eyeglasses holding books at home
Midsection of man holding book and eyeglasses at home
Midsection of man sitting with book
Person holding a leaf against the blue cloudy sky
Empty chairs and tables in row at lecture room
Man playing piano
Portrait of mother with son in lying on sponges
Side view of man holding eyeglasses at swimming pool
Cropped image of hands playing piano
Reflection of library shelfs
Low section of people holding soil on field
Full length of woman on swimming pool against building
Child drawing with colored chalk on the floor
High angle view of boy studying while lying on floor at home
Young man reading book against shelves
Midsection of man playing piano
Father and baby playing the piano
Adult programmer with a cup of tea talks to coworkers using a wireless headset
A boy stands in the library and reads a book while standing. preparing for homework.
Side view of boy holding teddy bear while sitting on railroad track
A pianist. music calms the soul
Man holding papers with mathematical equations while sitting at table
Low section of boy drawing on floor
Male professional making business strategy on digital tablet in office
Close-up of hand holding book at table
Midsection of man playing piano
Cropped hand wearing mask to girl at home
Side view of mature man drinking glass
Portrait of woman photographing book
Close-up of padlocks on bridge
Mother and child fixing bike
Midsection of woman playing jigsaw puzzle on table
Close-up of man holding mask of girl
Abstract glowing vanishing point tunnel
Midsection of young male student pouring liquid solution in flask on table at laboratory
Full length of boy sitting on chair
Preparation of cake and carnival pastries.
Stressed teenage boy with head in hand studying at home
Midsection of ballerinas practicing in studio
Close-up of woman hand against blue wall
Adult programmer with a cup of tea talks to coworkers using a wireless headset
Rear view of people sitting in music classroom
Midsection of person using mobile phone
Close-up of blue umbrella
High angle view of students playing on tiled floor
Boy laying in bed and communicating with grandma via video chat using laptop during coronavirus
Close-up of person using computer on table at home
Young student with umbrella standing in park
Close-up of woman using laptop on table
Midsection of girl holding coins outdoors
Cute baby girl on bed at home
Midsection of young woman playing piano
Midsection of woman reading book while sitting outdoors
Midsection of woman holding pencil while thinking at home
View of fire in the dark
Little striped kitten kisses his protective female dog, who defends him and follows him
Cropped image of woman photographing earthenware with smart phone in art studio
High angle view of boy using digital tablet while sitting with father at home
Cropped hand of woman holding wedding ring against colored background
Midsection of boy drawing on paper